(function (global, factory) {
  if (typeof module === "object" && typeof module.exports === "object") {
    module.exports = global.document ? factory(global, true) : function (w) {
      if (!w.document) {
        throw new Error("Avalon requires a window with a document")
      }
      return factory(w)
    }
  } else {
    factory(global)
  }
}(typeof window !== "undefined" ? window : this, function (window, noGlobal) {

// 02util.js

  /*********************************************************************
   *                 avalon的静态方法定义区                              *
   **********************************************************************/
  avalon.init = function (el) {
    this[0] = this.element = el
  }
  avalon.fn = avalon.prototype = avalon.init.prototype

  /**
   * @description 取得目标的类型
   *
   * @param obj
   * @returns {*}
   */
  avalon.type = function (obj) {
    if (obj == null) {
      return String(obj)
      // null => 'null'
      // undefined => 'undefined'
    }
    // 早期的webkit内核浏览器实现了已废弃的ecma262v4标准，可以将正则字面量当作函数使用，
    // 因此typeof在判定正则时会返回function
    return typeof obj === "object" || typeof obj === "function" ? class2type[serialize.call(obj)] || "object" : typeof obj
  }

  var isFunction = function (fn) {
    return oproto.toString.call(fn) === "[object Function]"
  }

  avalon.isFunction = isFunction

  avalon.isWindow = function (obj) {
    return rwindow.test(serialize.call(obj))
  }

  /*判定是否是一个朴素的javascript对象（Object），不是DOM对象，不是BOM对象，不是自定义类的实例*/

  avalon.isPlainObject = function (obj) {
    // 简单的 typeof obj === "object"检测，会致使用isPlainObject(window)在opera下通不过
    return serialize.call(obj) === "[object Object]" && Object.getPrototypeOf(obj) === oproto
  }

 //与jQuery.extend方法，可用于浅拷贝，深拷贝
  avalon.mix = avalon.fn.mix = function () {
    var options, name, src, copy, copyIsArray, clone,
      target = arguments[0] || {},
      i = 1,
      length = arguments.length,
      deep = false

    // 如果第一个参数为布尔,判定是否深拷贝
    if (typeof target === "boolean") {
      deep = target
      target = arguments[1] || {}
      i++
    }

    //确保接受方为一个复杂的数据类型
    if (typeof target !== "object" && !isFunction(target)) {
      target = {}
    }

    //如果只有一个参数，那么新成员添加于mix所在的对象上
    if (i === length) {
      target = this
      i--
    }

    for (; i < length; i++) {
      //只处理非空参数
      if ((options = arguments[i]) != null) {
        for (name in options) {
          src = target[name]
          copy = options[name]
          // 防止环引用
          if (target === copy) {
            continue
          }
          if (deep && copy && (avalon.isPlainObject(copy) || (copyIsArray = Array.isArray(copy)))) {

            if (copyIsArray) {
              copyIsArray = false
              clone = src && Array.isArray(src) ? src : []

            } else {
              clone = src && avalon.isPlainObject(src) ? src : {}
            }

            target[name] = avalon.mix(deep, clone, copy)
          } else if (copy !== void 0) {
            target[name] = copy
          }
        }
      }
    }
    return target
  }

  function _number(a, len) { //用于模拟slice, splice的效果
    a = Math.floor(a) || 0
    return a < 0 ? Math.max(len + a, 0) : Math.min(a, len);
  }

  avalon.mix({
    rword: rword,
    subscribers: subscribers,
    version: 1.55,
    ui: {},
    log: log,
    slice: function (nodes, start, end) {
      return aslice.call(nodes, start, end)
    },
    noop: noop,
    /*如果不用Error对象封装一下，str在控制台下可能会乱码*/
    error: function (str, e) {
      throw new (e || Error)(str)// jshint ignore:line
    },
    /*将一个以空格或逗号隔开的字符串或数组,转换成一个键值都为1的对象*/
    oneObject: oneObject,
    /* avalon.range(10)
     => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
     avalon.range(1, 11)
     => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
     avalon.range(0, 30, 5)
     => [0, 5, 10, 15, 20, 25]
     avalon.range(0, -10, -1)
     => [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
     avalon.range(0)
     => []*/
    range: function (start, end, step) { // 用于生成整数数组
      step || (step = 1)
      if (end == null) {
        end = start || 0
        start = 0
      }
      var index = -1,
        length = Math.max(0, Math.ceil((end - start) / step)),
        result = new Array(length)
      while (++index < length) {
        result[index] = start
        start += step
      }
      return result
    },
    eventHooks: {},
    /*绑定事件*/
    bind: function (el, type, fn, phase) {
      var hooks = avalon.eventHooks
      var hook = hooks[type]
      if (typeof hook === "object") {
        type = hook.type || type
        phase = hook.phase || !!phase
        fn = hook.fn ? hook.fn(el, fn) : fn
      }
      el.addEventListener(type, fn, phase)
      return fn
    },
    /*卸载事件*/
    unbind: function (el, type, fn, phase) {
      var hooks = avalon.eventHooks
      var hook = hooks[type]
      var callback = fn || noop
      if (typeof hook === "object") {
        type = hook.type || type
        phase = hook.phase || !!phase
      }
      el.removeEventListener(type, callback, phase)
    },
    /*读写删除元素节点的样式*/
    css: function (node, name, value) {
      if (node instanceof avalon) {
        node = node[0]
      }
      var prop = /[_-]/.test(name) ? camelize(name) : name, fn
      name = avalon.cssName(prop) || prop
      if (value === void 0 || typeof value === "boolean") { //获取样式
        fn = cssHooks[prop + ":get"] || cssHooks["@:get"]
        if (name === "background") {
          name = "backgroundColor"
        }
        var val = fn(node, name)
        return value === true ? parseFloat(val) || 0 : val
      } else if (value === "") { //请除样式
        node.style[name] = ""
      } else { //设置样式
        if (value == null || value !== value) {
          return
        }
        if (isFinite(value) && !avalon.cssNumber[prop]) {
          value += "px"
        }
        fn = cssHooks[prop + ":set"] || cssHooks["@:set"]
        fn(node, name, value)
      }
    },
    /*遍历数组与对象,回调的第一个参数为索引或键名,第二个或元素或键值*/
    each: function (obj, fn) {
      if (obj) { //排除null, undefined
        var i = 0
        if (isArrayLike(obj)) {
          for (var n = obj.length; i < n; i++) {
            if (fn(i, obj[i]) === false)
              break
          }
        } else {
          for (i in obj) {
            if (obj.hasOwnProperty(i) && fn(i, obj[i]) === false) {
              break
            }
          }
        }
      }
    },
    //收集元素的data-{{prefix}}-*属性，并转换为对象
    getWidgetData: function (elem, prefix) {
      var raw = avalon(elem).data()
      var result = {}
      for (var i in raw) {
        if (i.indexOf(prefix) === 0) {
          result[i.replace(prefix, "").replace(/\w/, function (a) {
            return a.toLowerCase()
          })] = raw[i]
        }
      }
      return result
    },
    Array: {
      /*只有当前数组不存在此元素时只添加它*/
      ensure: function (target, item) {
        if (target.indexOf(item) === -1) {
          return target.push(item)
        }
      },
      /*移除数组中指定位置的元素，返回布尔表示成功与否*/
      removeAt: function (target, index) {
        return !!target.splice(index, 1).length
      },
      /*移除数组中第一个匹配传参的那个元素，返回布尔表示成功与否*/
      remove: function (target, item) {
        var index = target.indexOf(item)
        if (~index)
          return avalon.Array.removeAt(target, index)
        return false
      }
    }
  })

  var bindingHandlers = avalon.bindingHandlers = {}
  var bindingExecutors = avalon.bindingExecutors = {}

  var directives = avalon.directives = {}
  avalon.directive = function (name, obj) {
    bindingHandlers[name] = obj.init = (obj.init || noop)
    bindingExecutors[name] = obj.update = (obj.update || noop)

    return directives[name] = obj
  }

  /*判定是否类数组，如节点集合，纯数组，arguments与拥有非负整数的length属性的纯JS对象*/
  function isArrayLike(obj) {
    if (obj && typeof obj === "object") {
      var n = obj.length,
        str = serialize.call(obj)
      if (/(Array|List|Collection|Map|Arguments)\]$/.test(str)) {
        return true
      } else if (str === "[object Object]" && n === (n >>> 0)) {
        return true //由于ecma262v5能修改对象属性的enumerable，因此不能用propertyIsEnumerable来判定了
      }
    }
    return false
  }


// https://github.com/rsms/js-lru
  var Cache = new function () {// jshint ignore:line
    function LRU(maxLength) {
      this.size = 0
      this.limit = maxLength
      this.head = this.tail = void 0
      this._keymap = {}
    }

    var p = LRU.prototype

    p.put = function (key, value) {
      var entry = {
        key: key,
        value: value
      }
      this._keymap[key] = entry
      if (this.tail) {
        this.tail.newer = entry
        entry.older = this.tail
      } else {
        this.head = entry
      }
      this.tail = entry
      if (this.size === this.limit) {
        this.shift()
      } else {
        this.size++
      }
      return value
    }

    p.shift = function () {
      var entry = this.head
      if (entry) {
        this.head = this.head.newer
        this.head.older =
          entry.newer =
            entry.older =
              this._keymap[entry.key] = void 0
        delete this._keymap[entry.key] //#1029
      }
    }
    p.get = function (key) {
      var entry = this._keymap[key]
      if (entry === void 0)
        return
      if (entry === this.tail) {
        return entry.value
      }
      // HEAD--------------TAIL
      //   <.older   .newer>
      //  <--- add direction --
      //   A  B  C  <D>  E
      if (entry.newer) {
        if (entry === this.head) {
          this.head = entry.newer
        }
        entry.newer.older = entry.older // C <-- E.
      }
      if (entry.older) {
        entry.older.newer = entry.newer // C. --> E
      }
      entry.newer = void 0 // D --x
      entry.older = this.tail // D. --> E
      if (this.tail) {
        this.tail.newer = entry // E. <-- D
      }
      this.tail = entry
      return entry.value
    }
    return LRU
  }// jshint ignore:line

  /*********************************************************************
   *                           DOM 底层补丁                             *
   **********************************************************************/
//safari5+是把contains方法放在Element.prototype上而不是Node.prototype
  if (!DOC.contains) {
    Node.prototype.contains = function (arg) {
      return !!(this.compareDocumentPosition(arg) & 16)
    }
  }
  avalon.contains = function (root, el) {
    try {
      while ((el = el.parentNode))
        if (el === root)
          return true
      return false
    } catch (e) {
      return false
    }
  }

  if (window.SVGElement) {
    var svgns = "http://www.w3.org/2000/svg"
    var svg = DOC.createElementNS(svgns, "svg")
    svg.innerHTML = '<circle cx="50" cy="50" r="40" fill="red" />'
    if (!rsvg.test(svg.firstChild)) {// #409
      /* jshint ignore:start */
      function enumerateNode(node, targetNode) {
        if (node && node.childNodes) {
          var nodes = node.childNodes
          for (var i = 0, el; el = nodes[i++];) {
            if (el.tagName) {
              var svg = DOC.createElementNS(svgns,
                el.tagName.toLowerCase())
              // copy attrs
              ap.forEach.call(el.attributes, function (attr) {
                svg.setAttribute(attr.name, attr.value)
              })
              // 递归处理子节点
              enumerateNode(el, svg)
              targetNode.appendChild(svg)
            }
          }
        }
      }

      /* jshint ignore:end */
      Object.defineProperties(SVGElement.prototype, {
        "outerHTML": {//IE9-11,firefox不支持SVG元素的innerHTML,outerHTML属性
          enumerable: true,
          configurable: true,
          get: function () {
            return new XMLSerializer().serializeToString(this)
          },
          set: function (html) {
            var tagName = this.tagName.toLowerCase(),
              par = this.parentNode,
              frag = avalon.parseHTML(html)
            // 操作的svg，直接插入
            if (tagName === "svg") {
              par.insertBefore(frag, this)
              // svg节点的子节点类似
            } else {
              var newFrag = DOC.createDocumentFragment()
              enumerateNode(frag, newFrag)
              par.insertBefore(newFrag, this)
            }
            par.removeChild(this)
          }
        },
        "innerHTML": {
          enumerable: true,
          configurable: true,
          get: function () {
            var s = this.outerHTML
            var ropen = new RegExp("<" + this.nodeName + '\\b(?:(["\'])[^"]*?(\\1)|[^>])*>', "i")
            var rclose = new RegExp("<\/" + this.nodeName + ">$", "i")
            return s.replace(ropen, "").replace(rclose, "")
          },
          set: function (html) {
            if (avalon.clearHTML) {
              avalon.clearHTML(this)
              var frag = avalon.parseHTML(html)
              enumerateNode(frag, this)
            }
          }
        }
      })
    }
  }
//========================= event binding ====================
  var eventHooks = avalon.eventHooks
//针对firefox, chrome修正mouseenter, mouseleave(chrome30+)
  if (!("onmouseenter" in root)) {
    avalon.each({
      mouseenter: "mouseover",
      mouseleave: "mouseout"
    }, function (origType, fixType) {
      eventHooks[origType] = {
        type: fixType,
        fn: function (elem, fn) {
          return function (e) {
            var t = e.relatedTarget
            if (!t || (t !== elem && !(elem.compareDocumentPosition(t) & 16))) {
              delete e.type
              e.type = origType
              return fn.call(elem, e)
            }
          }
        }
      }
    })
  }
//针对IE9+, w3c修正animationend
  avalon.each({
    AnimationEvent: "animationend",
    WebKitAnimationEvent: "webkitAnimationEnd"
  }, function (construct, fixType) {
    if (window[construct] && !eventHooks.animationend) {
      eventHooks.animationend = {
        type: fixType
      }
    }
  })

  if (DOC.onmousewheel === void 0) {
    /* IE6-11 chrome mousewheel wheelDetla 下 -120 上 120
     firefox DOMMouseScroll detail 下3 上-3
     firefox wheel detlaY 下3 上-3
     IE9-11 wheel deltaY 下40 上-40
     chrome wheel deltaY 下100 上-100 */
    eventHooks.mousewheel = {
      type: "wheel",
      fn: function (elem, fn) {
        return function (e) {
          e.wheelDeltaY = e.wheelDelta = e.deltaY > 0 ? -120 : 120
          e.wheelDeltaX = 0
          Object.defineProperty(e, "type", {
            value: "mousewheel"
          })
          fn.call(elem, e)
        }
      }
    }
  }

  /*********************************************************************
   *                           配置系统                                 *
   **********************************************************************/

  function kernel(settings) {
    for (var p in settings) {
      if (!ohasOwn.call(settings, p))
        continue
      var val = settings[p]
      if (typeof kernel.plugins[p] === "function") {
        kernel.plugins[p](val)
      } else if (typeof kernel[p] === "object") {
        avalon.mix(kernel[p], val)
      } else {
        kernel[p] = val
      }
    }
    return this
  }

  var openTag, closeTag, rexpr, rexprg, rbind, rregexp = /[-.*+?^${}()|[\]\/\\]/g

  function escapeRegExp(target) {
    //http://stevenlevithan.com/regex/xregexp/
    //将字符串安全格式化为正则表达式的源码
    return (target + "").replace(rregexp, "\\$&")
  }

  var plugins = {
    interpolate: function (array) {
      openTag = array[0]
      closeTag = array[1]
      if (openTag === closeTag) {
        throw new SyntaxError("openTag!==closeTag")
        var test = openTag + "test" + closeTag
        cinerator.innerHTML = test
        if (cinerator.innerHTML !== test && cinerator.innerHTML.indexOf("&lt;") > -1) {
          throw new SyntaxError("此定界符不合法")
        }
        cinerator.innerHTML = ""
      }
      kernel.openTag = openTag
      kernel.closeTag = closeTag
      var o = escapeRegExp(openTag),
        c = escapeRegExp(closeTag)
      rexpr = new RegExp(o + "(.*?)" + c)
      rexprg = new RegExp(o + "(.*?)" + c, "g")
      rbind = new RegExp(o + ".*?" + c + "|\\sms-")
    }
  }
  kernel.async = true
  kernel.debug = true
  kernel.plugins = plugins
  kernel.plugins['interpolate'](["{{", "}}"])
  kernel.paths = {}
  kernel.shim = {}
  kernel.maxRepeatSize = 100
  avalon.config = kernel

  function $watch(expr, binding) {
    var $events = this.$events || (this.$events = {})

    var queue = $events[expr] || ($events[expr] = [])
    if (typeof binding === "function") {
      var backup = binding
      backup.uniqueNumber = Math.random()
      binding = {
        element: root,
        type: "user-watcher",
        handler: noop,
        vmodels: [this],
        expr: expr,
        uniqueNumber: backup.uniqueNumber
      }
      binding.wildcard = /\*/.test(expr)
    }

    if (!binding.update) {
      if (/\w\.*\B/.test(expr)) {
        binding.getter = noop
        var host = this
        binding.update = function () {
          var args = this.fireArgs || []
          if (args[2])
            binding.handler.apply(host, args)
          delete this.fireArgs
        }
        queue.sync = true
        avalon.Array.ensure(queue, binding)
      } else {
        avalon.injectBinding(binding)
      }
      if (backup) {
        binding.handler = backup
      }
    } else if (!binding.oneTime) {
      avalon.Array.ensure(queue, binding)
    }
    return function () {
      binding.update = binding.getter = binding.handler = noop
      binding.element = DOC.createElement("a")
    }
  }

  function $emit(key, args) {
    var event = this.$events
    if (event && event[key]) {
      if (args) {
        args[2] = key
      }
      var arr = event[key]
      notifySubscribers(arr, args)
      var parent = this.$up
      if (parent) {
        if (this.$pathname) {
          $emit.call(parent, this.$pathname + "." + key, args)//以确切的值往上冒泡
        }

        $emit.call(parent, "*." + key, args)//以模糊的值往上冒泡
      }
    } else {
      parent = this.$up

      if (this.$ups) {
        for (var i in this.$ups) {
          $emit.call(this.$ups[i], i + "." + key, args)//以确切的值往上冒泡
        }
        return
      }
      if (parent) {
        var p = this.$pathname
        if (p === "")
          p = "*"
        var path = p + "." + key
        arr = path.split(".")
        if (arr.indexOf("*") === -1) {
          $emit.call(parent, path, args)//以确切的值往上冒泡
          arr[1] = "*"
          $emit.call(parent, arr.join("."), args)//以模糊的值往上冒泡
        } else {
          $emit.call(parent, path, args)//以确切的值往上冒泡
        }
      }
    }
  }


  function collectDependency(el, key) {
    do {
      if (el.$watch) {
        var e = el.$events || (el.$events = {})
        var array = e[key] || (e[key] = [])
        dependencyDetection.collectDependency(array)
        return
      }
      el = el.$up
      if (el) {
        key = el.$pathname + "." + key
      } else {
        break
      }

    } while (true)
  }


  function notifySubscribers(subs, args) {
    if (!subs)
      return
    if (new Date() - beginTime > 444 && typeof subs[0] === "object") {
      rejectDisposeQueue()
    }
    var users = [], renders = []
    for (var i = 0, sub; sub = subs[i++];) {
      if (sub.type === "user-watcher") {
        users.push(sub)
      } else {
        renders.push(sub)
      }

    }
    if (kernel.async) {
      buffer.render()//1
      for (i = 0; sub = renders[i++];) {
        if (sub.update) {
          var uuid = getUid(sub)
          if (!buffer.queue[uuid]) {
            buffer.queue[uuid] = 1
            buffer.queue.push(sub)
          }
        }
      }
    } else {
      for (i = 0; sub = renders[i++];) {
        if (sub.update) {
          sub.update()//最小化刷新DOM树
        }
      }
    }
    for (i = 0; sub = users[i++];) {
      if (args && args[2] === sub.expr || sub.wildcard) {
        sub.fireArgs = args
      }
      sub.update()
    }
  }

//avalon最核心的方法的两个方法之一（另一个是avalon.scan），返回一个ViewModel(VM)
  var VMODELS = avalon.vmodels = {} //所有vmodel都储存在这里
  avalon.define = function (source) {
    var $id = source.$id
    if (!$id) {
      log("warning: vm必须指定$id")
    }
    var vmodel = modelFactory(source)
    vmodel.$id = $id
    return VMODELS[$id] = vmodel
  }

//一些不需要被监听的属性
  var $$skipArray = oneObject("$id,$watch,$fire,$events,$model,$skipArray,$active,$pathname,$up,$ups,$track,$accessors")

//如果浏览器不支持ecma262v5的Object.defineProperties或者存在BUG，比如IE8
//标准浏览器使用__defineGetter__, __defineSetter__实现

  function modelFactory(source, options) {
    options = options || {}
    options.watch = true
    return observeObject(source, options)
  }

//监听对象属性值的变化(注意,数组元素不是数组的属性),通过对劫持当前对象的访问器实现
//监听对象或数组的结构变化, 对对象的键值对进行增删重排, 或对数组的进行增删重排,都属于这范畴
//   通过比较前后代理VM顺序实现
  function Component() {

  }

  function observeObject(source, options) {
    if (!source || (source.$id && source.$accessors) || (source.nodeName && source.nodeType > 0)) {
      return source
    }
    //source为原对象,不能是元素节点或null
    //options,可选,配置对象,里面有old, force, watch这三个属性
    options = options || nullObject
    var force = options.force || nullObject
    var old = options.old
    var oldAccessors = old && old.$accessors || nullObject
    var $vmodel = new Component() //要返回的对象, 它在IE6-8下可能被偷龙转凤
    var accessors = {} //监控属性
    var hasOwn = {}
    var skip = []
    var simple = []
    var $skipArray = {}
    if (source.$skipArray) {
      $skipArray = oneObject(source.$skipArray)
      delete source.$skipArray
    }
    //处理计算属性
    var computed = source.$computed
    if (computed) {
      delete source.$computed
      for (var name in computed) {
        hasOwn[name] = true;
        (function (key, value) {
          var old
          accessors[key] = {
            get: function () {
              return old = value.get.call(this)
            },
            set: function (x) {
              if (typeof value.set === "function") {
                var older = old
                value.set.call(this, x)
                var newer = this[key]
                if (this.$fire && (newer !== older)) {
                  this.$fire(key, newer, older)
                }
              }
            },
            enumerable: true,
            configurable: true
          }
        })(name, computed[name])// jshint ignore:line
      }
    }


    for (name in source) {
      var value = source[name]
      if (!$$skipArray[name])
        hasOwn[name] = true
      if (typeof value === "function" || (value && value.nodeName && value.nodeType > 0) ||
        (!force[name] && (name.charAt(0) === "$" || $$skipArray[name] || $skipArray[name]))) {
        skip.push(name)
      } else if (isComputed(value)) {
        log("warning:计算属性建议放在$computed对象中统一定义");
        (function (key, value) {
          var old
          accessors[key] = {
            get: function () {
              return old = value.get.call(this)
            },
            set: function (x) {
              if (typeof value.set === "function") {
                var older = old
                value.set.call(this, x)
                var newer = this[key]
                if (this.$fire && (newer !== older)) {
                  this.$fire(key, newer, older)
                }
              }
            },
            enumerable: true,
            configurable: true
          }
        })(name, value)// jshint ignore:line
      } else {
        simple.push(name)
        if (oldAccessors[name]) {
          accessors[name] = oldAccessors[name]
        } else {
          accessors[name] = makeGetSet(name, value)
        }
      }
    }


    accessors["$model"] = $modelDescriptor
    $vmodel = Object.defineProperties($vmodel, accessors, source)

    function trackBy(name) {
      return hasOwn[name] === true
    }

    skip.forEach(function (name) {
      $vmodel[name] = source[name]
    })

    /* jshint ignore:start */
    hideProperty($vmodel, "$ups", null)
    hideProperty($vmodel, "$id", "anonymous")
    hideProperty($vmodel, "$up", old ? old.$up : null)
    hideProperty($vmodel, "$track", Object.keys(hasOwn))
    hideProperty($vmodel, "$active", false)
    hideProperty($vmodel, "$pathname", old ? old.$pathname : "")
    hideProperty($vmodel, "$accessors", accessors)
    hideProperty($vmodel, "hasOwnProperty", trackBy)
    if (options.watch) {
      hideProperty($vmodel, "$watch", function () {
        return $watch.apply($vmodel, arguments)
      })
      hideProperty($vmodel, "$fire", function (path, a) {
        if (path.indexOf("all!") === 0) {
          var ee = path.slice(4)
          for (var i in avalon.vmodels) {
            var v = avalon.vmodels[i]
            v.$fire && v.$fire.apply(v, [ee, a])
          }
        } else {
          $emit.call($vmodel, path, [a])
        }
      })
    }
    /* jshint ignore:end */

    //必须设置了$active,$events
    simple.forEach(function (name) {
      var oldVal = old && old[name]
      var val = $vmodel[name] = source[name]
      if (val && typeof val === "object") {
        val.$up = $vmodel
        val.$pathname = name
      }
      $emit.call($vmodel, name, [val, oldVal])
    })
    for (name in computed) {
      value = $vmodel[name]
    }
    $vmodel.$active = true
    return $vmodel
  }

  /*
 新的VM拥有如下私有属性
 $id: vm.id
 $events: 放置$watch回调与绑定对象
 $watch: 增强版$watch
 $fire: 触发$watch回调
 $track:一个数组,里面包含用户定义的所有键名
 $active:boolean,false时防止依赖收集
 $model:返回一个纯净的JS对象
 $accessors:放置所有读写器的数据描述对象
 $up:返回其上级对象
 $pathname:返回此对象在上级对象的名字,注意,数组元素的$pathname为空字符串
 =============================
 $skipArray:用于指定不可监听的属性,但VM生成是没有此属性的
 */
  function isComputed(val) {//speed up!
    if (val && typeof val === "object") {
      for (var i in val) {
        if (i !== "get" && i !== "set") {
          return false
        }
      }
      return typeof val.get === "function"
    }
  }

  function makeGetSet(key, value) {
    var childVm, value = NaN
    return {
      get: function () {
        if (this.$active) {
          collectDependency(this, key)
        }
        return value
      },
      set: function (newVal) {
        if (value === newVal)
          return
        var oldValue = value
        childVm = observe(newVal, value)
        if (childVm) {
          value = childVm
        } else {
          childVm = void 0
          value = newVal
        }

        if (Object(childVm) === childVm) {
          childVm.$pathname = key
          childVm.$up = this
        }
        if (this.$active) {
          $emit.call(this, key, [value, oldValue])
        }
      },
      enumerable: true,
      configurable: true
    }
  }

  function observe(obj, old, hasReturn, watch) {
    if (Array.isArray(obj)) {
      return observeArray(obj, old, watch)
    } else if (avalon.isPlainObject(obj)) {
      if (old && typeof old === 'object') {
        var keys = Object.keys(obj)
        var keys2 = Object.keys(old)
        if (keys.join(";") === keys2.join(";")) {
          for (var i in obj) {
            if (obj.hasOwnProperty(i)) {
              old[i] = obj[i]
            }
          }
          return old
        }
        old.$active = false
      }
      return observeObject(obj, {
        old: old,
        watch: watch
      })
    }
    if (hasReturn) {
      return obj
    }
  }

  function observeArray(array, old, watch) {
    if (old) {
      var args = [0, old.length].concat(array)
      old.splice.apply(old, args)
      return old
    } else {
      for (var i in newProto) {
        array[i] = newProto[i]
      }
      hideProperty(array, "$up", null)
      hideProperty(array, "$pathname", "")
      hideProperty(array, "$track", createTrack(array.length))

      array._ = observeObject({
        length: NaN
      }, {
        watch: true
      })
      array._.length = array.length
      array._.$watch("length", function (a, b) {
        $emit.call(array.$up, array.$pathname + ".length", [a, b])
      })
      if (watch) {
        hideProperty(array, "$watch", function () {
          return $watch.apply(array, arguments)
        })
      }


      Object.defineProperty(array, "$model", $modelDescriptor)

      for (var j = 0, n = array.length; j < n; j++) {
        var el = array[j] = observe(array[j], 0, 1, 1)
        if (Object(el) === el) {//#1077
          el.$up = array
        }
      }

      return array
    }
  }

  function hideProperty(host, name, value) {

    Object.defineProperty(host, name, {
      value: value,
      writable: true,
      enumerable: false,
      configurable: true
    })

  }

  function toJson(val) {
    var xtype = avalon.type(val)
    if (xtype === "array") {
      var array = []
      for (var i = 0; i < val.length; i++) {
        array[i] = toJson(val[i])
      }
      return array
    } else if (xtype === "object") {
      var obj = {}
      for (i in val) {
        if (val.hasOwnProperty(i)) {
          var value = val[i]
          obj[i] = value && value.nodeType ? value : toJson(value)
        }
      }
      return obj
    }
    return val
  }

  var $modelDescriptor = {
    get: function () {
      return toJson(this)
    },
    set: noop,
    enumerable: false,
    configurable: true
  }


  /*********************************************************************
   *          监控数组（与ms-each, ms-repeat配合使用）                     *
   **********************************************************************/

  var arrayMethods = ['push', 'pop', 'shift', 'unshift', 'splice']
  var arrayProto = Array.prototype
  var newProto = {
    notify: function () {
      $emit.call(this.$up, this.$pathname)
    },
    set: function (index, val) {
      if (((index >>> 0) === index) && this[index] !== val) {
        if (index > this.length) {
          throw Error(index + "set方法的第一个参数不能大于原数组长度")
        }
        $emit.call(this.$up, this.$pathname + ".*", [val, this[index]])
        this.splice(index, 1, val)
      }
    },
    contains: function (el) { //判定是否包含
      return this.indexOf(el) !== -1
    },
    ensure: function (el) {
      if (!this.contains(el)) { //只有不存在才push
        this.push(el)
      }
      return this
    },
    pushArray: function (arr) {
      return this.push.apply(this, arr)
    },
    remove: function (el) { //移除第一个等于给定值的元素
      return this.removeAt(this.indexOf(el))
    },
    removeAt: function (index) { //移除指定索引上的元素
      if ((index >>> 0) === index) {
        return this.splice(index, 1)
      }
      return []
    },
    size: function () { //取得数组长度，这个函数可以同步视图，length不能
      return this._.length
    },
    removeAll: function (all) { //移除N个元素
      if (Array.isArray(all)) {
        for (var i = this.length - 1; i >= 0; i--) {
          if (all.indexOf(this[i]) !== -1) {
            _splice.call(this.$track, i, 1)
            _splice.call(this, i, 1)

          }
        }
      } else if (typeof all === "function") {
        for (i = this.length - 1; i >= 0; i--) {
          var el = this[i]
          if (all(el, i)) {
            _splice.call(this.$track, i, 1)
            _splice.call(this, i, 1)

          }
        }
      } else {
        _splice.call(this.$track, 0, this.length)
        _splice.call(this, 0, this.length)

      }
      if (!W3C) {
        this.$model = toJson(this)
      }
      this.notify()
      this._.length = this.length
    },
    clear: function () {
      return this.removeAll()
    }
  }
  var _splice = arrayProto.splice
  arrayMethods.forEach(function (method) {
    var original = arrayProto[method]
    newProto[method] = function () {
      // 继续尝试劫持数组元素的属性
      var args = []
      for (var i = 0, n = arguments.length; i < n; i++) {
        args[i] = observe(arguments[i], 0, 1, 1)
      }
      var result = original.apply(this, args)
      addTrack(this.$track, method, args)
      if (!W3C) {
        this.$model = toJson(this)
      }
      this.notify()
      this._.length = this.length
      return result
    }
  })

  "sort,reverse".replace(rword, function (method) {
    newProto[method] = function () {
      var oldArray = this.concat() //保持原来状态的旧数组
      var newArray = this
      var mask = Math.random()
      var indexes = []
      var hasSort = false
      arrayProto[method].apply(newArray, arguments) //排序
      for (var i = 0, n = oldArray.length; i < n; i++) {
        var neo = newArray[i]
        var old = oldArray[i]
        if (neo === old) {
          indexes.push(i)
        } else {
          var index = oldArray.indexOf(neo)
          indexes.push(index)//得到新数组的每个元素在旧数组对应的位置
          oldArray[index] = mask    //屏蔽已经找过的元素
          hasSort = true
        }
      }
      if (hasSort) {
        sortByIndex(this.$track, indexes)
        if (!W3C) {
          this.$model = toJson(this)
        }
        this.notify()
      }
      return this
    }
  })

  function sortByIndex(array, indexes) {
    var map = {};
    for (var i = 0, n = indexes.length; i < n; i++) {
      map[i] = array[i]
      var j = indexes[i]
      if (j in map) {
        array[i] = map[j]
        delete map[j]
      } else {
        array[i] = array[j]
      }
    }
  }

  function createTrack(n) {
    var ret = []
    for (var i = 0; i < n; i++) {
      ret[i] = generateID("$proxy$each")
    }
    return ret
  }

  function addTrack(track, method, args) {
    switch (method) {
      case 'push':
      case 'unshift':
        args = createTrack(args.length)
        break
      case 'splice':
        if (args.length > 2) {
          // 0, 5, a, b, c --> 0, 2, 0
          // 0, 5, a, b, c, d, e, f, g--> 0, 0, 3
          var del = args[1]
          var add = args.length - 2
          // args = [args[0], Math.max(del - add, 0)].concat(createTrack(Math.max(add - del, 0)))
          args = [args[0], args[1]].concat(createTrack(args.length - 2))
        }
        break
    }
    Array.prototype[method].apply(track, args)
  }

  /*********************************************************************
   *                           依赖调度系统                             *
   **********************************************************************/
//检测两个对象间的依赖关系
  var dependencyDetection = (function () {
    var outerFrames = []
    var currentFrame
    return {
      begin: function (binding) {
        //accessorObject为一个拥有callback的对象
        outerFrames.push(currentFrame)
        currentFrame = binding
      },
      end: function () {
        currentFrame = outerFrames.pop()
      },
      collectDependency: function (array) {
        if (currentFrame) {
          //被dependencyDetection.begin调用
          currentFrame.callback(array)
        }
      }
    };
  })()
//将绑定对象注入到其依赖项的订阅数组中
  var roneval = /^on$/

  function returnRandom() {
    return new Date() - 0
  }

  avalon.injectBinding = function (binding) {

    binding.handler = binding.handler || directives[binding.type].update || noop
    binding.update = function () {
      var begin = false
      if (!binding.getter) {
        begin = true
        dependencyDetection.begin({
          callback: function (array) {
            injectDependency(array, binding)
          }
        })
        binding.getter = parseExpr(binding.expr, binding.vmodels, binding)
        binding.observers.forEach(function (a) {
          a.v.$watch(a.p, binding)
        })
        delete binding.observers
      }
      try {
        var args = binding.fireArgs, a, b
        delete binding.fireArgs
        if (!args) {
          if (binding.type === "on") {
            a = binding.getter + ""
          } else {
            a = binding.getter.apply(0, binding.args)
          }
        } else {
          a = args[0]
          b = args[1]

        }
        b = typeof b === "undefined" ? binding.oldValue : b
        if (binding._filters) {
          a = filters.$filter.apply(0, [a].concat(binding._filters))
        }
        if (binding.signature) {
          var xtype = avalon.type(a)
          if (xtype !== "array" && xtype !== "object") {
            throw Error("warning:" + binding.expr + "只能是对象或数组")
          }
          binding.xtype = xtype
          var vtrack = getProxyIds(binding.proxies || [], xtype)
          var mtrack = a.$track || (xtype === "array" ? createTrack(a.length) :
            Object.keys(a))
          binding.track = mtrack
          if (vtrack !== mtrack.join(";")) {
            binding.handler(a, b)
            binding.oldValue = 1
          }
        } else if (Array.isArray(a) ? a.length !== (b && b.length) : false) {
          binding.handler(a, b)
          binding.oldValue = a.concat()
        } else if (!("oldValue" in binding) || a !== b) {
          binding.handler(a, b)
          binding.oldValue = a
        }
      } catch (e) {
        delete binding.getter
        log("warning:exception throwed in [avalon.injectBinding] ", e)
        var node = binding.element
        if (node && node.nodeType === 3) {
          node.nodeValue = openTag + (binding.oneTime ? "::" : "") + binding.expr + closeTag
        }
      } finally {
        begin && dependencyDetection.end()

      }
    }
    binding.update()
  }


//将依赖项(比它高层的访问器或构建视图刷新函数的绑定对象)注入到订阅者数组
  function injectDependency(list, binding) {
    if (binding.oneTime)
      return
    if (list && avalon.Array.ensure(list, binding) && binding.element) {
      injectDisposeQueue(binding, list)
      if (new Date() - beginTime > 444) {
        rejectDisposeQueue()
      }
    }
  }


  function getProxyIds(a, isArray) {
    var ret = []
    for (var i = 0, el; el = a[i++];) {
      ret.push(isArray ? el.$id : el.$key)
    }
    return ret.join(";")
  }

  /*********************************************************************
   *                          定时GC回收机制                             *
   **********************************************************************/
  var disposeCount = 0
  var disposeQueue = avalon.$$subscribers = []
  var beginTime = new Date()
  var oldInfo = {}

  function getUid(data) { //IE9+,标准浏览器
    if (!data.uniqueNumber) {
      var elem = data.element
      if (elem) {
        if (elem.nodeType !== 1) {
          //如果是注释节点,则data.pos不存在,当一个元素下有两个注释节点就会出问题
          data.uniqueNumber = data.type + "-" + getUid(elem.parentNode) + "-" + (++disposeCount)
        } else {
          data.uniqueNumber = data.name + "-" + getUid(elem)
        }
      } else {
        data.uniqueNumber = ++disposeCount
      }
    }
    return data.uniqueNumber
  }

//添加到回收列队中
  function injectDisposeQueue(data, list) {
    var lists = data.lists || (data.lists = [])
    var uuid = getUid(data)
    avalon.Array.ensure(lists, list)
    list.$uuid = list.$uuid || generateID()
    if (!disposeQueue[uuid]) {
      disposeQueue[uuid] = 1
      disposeQueue.push(data)
    }
  }

  function rejectDisposeQueue(data) {

    var i = disposeQueue.length
    var n = i
    var allTypes = []
    var iffishTypes = {}
    var newInfo = {}
    //对页面上所有绑定对象进行分门别类, 只检测个数发生变化的类型
    while (data = disposeQueue[--i]) {
      var type = data.type
      if (newInfo[type]) {
        newInfo[type]++
      } else {
        newInfo[type] = 1
        allTypes.push(type)
      }
    }
    var diff = false
    allTypes.forEach(function (type) {
      if (oldInfo[type] !== newInfo[type]) {
        iffishTypes[type] = 1
        diff = true
      }
    })
    i = n
    if (diff) {
      while (data = disposeQueue[--i]) {
        if (data.element === null) {
          disposeQueue.splice(i, 1)
          continue
        }
        if (iffishTypes[data.type] && shouldDispose(data.element)) { //如果它没有在DOM树
          disposeQueue.splice(i, 1)
          delete disposeQueue[data.uniqueNumber]
          var lists = data.lists
          for (var k = 0, list; list = lists[k++];) {
            avalon.Array.remove(lists, list)
            avalon.Array.remove(list, data)
          }
          disposeData(data)
        }
      }
    }
    oldInfo = newInfo
    beginTime = new Date()
  }

  function disposeData(data) {
    delete disposeQueue[data.uniqueNumber] // 先清除，不然无法回收了
    data.element = null
    data.rollback && data.rollback()
    for (var key in data) {
      data[key] = null
    }
  }

  function shouldDispose(el) {
    try {//IE下，如果文本节点脱离DOM树，访问parentNode会报错
      var fireError = el.parentNode.nodeType
    } catch (e) {
      return true
    }
    if (el.ifRemove) {
      // 如果节点被放到ifGroup，才移除
      if (!root.contains(el.ifRemove) && (ifGroup === el.parentNode)) {
        el.parentNode && el.parentNode.removeChild(el)
        return true
      }
    }
    return el.msRetain ? 0 : (el.nodeType === 1 ? !root.contains(el) : !avalon.contains(root, el))
  }


  /************************************************************************
   *              HTML处理(parseHTML, innerHTML, clearHTML)                 *
   **************************************************************************/
//parseHTML的辅助变量
  var tagHooks = new function () {// jshint ignore:line
    avalon.mix(this, {
      option: DOC.createElement("select"),
      thead: DOC.createElement("table"),
      td: DOC.createElement("tr"),
      area: DOC.createElement("map"),
      tr: DOC.createElement("tbody"),
      col: DOC.createElement("colgroup"),
      legend: DOC.createElement("fieldset"),
      _default: DOC.createElement("div"),
      "g": DOC.createElementNS("http://www.w3.org/2000/svg", "svg")
    })
    this.optgroup = this.option
    this.tbody = this.tfoot = this.colgroup = this.caption = this.thead
    this.th = this.td
  }// jshint ignore:line

  String("circle,defs,ellipse,image,line,path,polygon,polyline,rect,symbol,text,use").replace(rword, function (tag) {
    tagHooks[tag] = tagHooks.g //处理SVG
  })
  var rtagName = /<([\w:]+)/
  var rxhtml = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig
  var scriptTypes = oneObject(["", "text/javascript", "text/ecmascript", "application/ecmascript", "application/javascript"])
  var script = DOC.createElement("script")
  var rhtml = /<|&#?\w+;/
  avalon.parseHTML = function (html) {
    var fragment = avalonFragment.cloneNode(false)
    if (typeof html !== "string") {
      return fragment
    }
    if (!rhtml.test(html)) {
      fragment.appendChild(DOC.createTextNode(html))
      return fragment
    }
    html = html.replace(rxhtml, "<$1></$2>").trim()
    var tag = (rtagName.exec(html) || ["", ""])[1].toLowerCase(),
      //取得其标签名
      wrapper = tagHooks[tag] || tagHooks._default,
      firstChild
    wrapper.innerHTML = html
    var els = wrapper.getElementsByTagName("script")
    if (els.length) { //使用innerHTML生成的script节点不会发出请求与执行text属性
      for (var i = 0, el; el = els[i++];) {
        if (scriptTypes[el.type]) {
          var neo = script.cloneNode(false) //FF不能省略参数
          ap.forEach.call(el.attributes, function (attr) {
            neo.setAttribute(attr.name, attr.value)
          })// jshint ignore:line
          neo.text = el.text
          el.parentNode.replaceChild(neo, el)
        }
      }
    }

    while (firstChild = wrapper.firstChild) { // 将wrapper上的节点转移到文档碎片上！
      fragment.appendChild(firstChild)
    }
    return fragment
  }

  avalon.innerHTML = function (node, html) {
    var a = this.parseHTML(html)
    this.clearHTML(node).appendChild(a)
  }

  avalon.clearHTML = function (node) {
    node.textContent = ""
    while (node.firstChild) {
      node.removeChild(node.firstChild)
    }
    return node
  }

  /*********************************************************************
   *                        avalon的原型方法定义区                        *
   **********************************************************************/

  function hyphen(target) {
    //转换为连字符线风格
    return target.replace(/([a-z\d])([A-Z]+)/g, "$1-$2").toLowerCase()
  }

  function camelize(target) {
    //转换为驼峰风格
    if (target.indexOf("-") < 0 && target.indexOf("_") < 0) {
      return target //提前判断，提高getStyle等的效率
    }
    return target.replace(/[-_][^-_]/g, function (match) {
      return match.charAt(1).toUpperCase()
    })
  }

  "add,remove".replace(rword, function (method) {
    avalon.fn[method + "Class"] = function (cls) {
      var el = this[0]
      //https://developer.mozilla.org/zh-CN/docs/Mozilla/Firefox/Releases/26
      if (cls && typeof cls === "string" && el && el.nodeType === 1) {
        cls.replace(/\S+/g, function (c) {
          el.classList[method](c)
        })
      }
      return this
    }
  })

  avalon.fn.mix({
    hasClass: function (cls) {
      var el = this[0] || {} //IE10+, chrome8+, firefox3.6+, safari5.1+,opera11.5+支持classList,chrome24+,firefox26+支持classList2.0
      return el.nodeType === 1 && el.classList.contains(cls)
    },
    toggleClass: function (value, stateVal) {
      var className, i = 0
      var classNames = String(value).split(/\s+/)
      var isBool = typeof stateVal === "boolean"
      while ((className = classNames[i++])) {
        var state = isBool ? stateVal : !this.hasClass(className)
        this[state ? "addClass" : "removeClass"](className)
      }
      return this
    },
    attr: function (name, value) {
      if (arguments.length === 2) {
        this[0].setAttribute(name, value)
        return this
      } else {
        return this[0].getAttribute(name)
      }
    },
    data: function (name, value) {
      name = "data-" + hyphen(name || "")
      switch (arguments.length) {
        case 2:
          this.attr(name, value)
          return this
        case 1:
          var val = this.attr(name)
          return parseData(val)
        case 0:
          var ret = {}
          ap.forEach.call(this[0].attributes, function (attr) {
            if (attr) {
              name = attr.name
              if (!name.indexOf("data-")) {
                name = camelize(name.slice(5))
                ret[name] = parseData(attr.value)
              }
            }
          })
          return ret
      }
    },
    removeData: function (name) {
      name = "data-" + hyphen(name)
      this[0].removeAttribute(name)
      return this
    },
    css: function (name, value) {
      if (avalon.isPlainObject(name)) {
        for (var i in name) {
          avalon.css(this, i, name[i])
        }
      } else {
        var ret = avalon.css(this, name, value)
      }
      return ret !== void 0 ? ret : this
    },
    position: function () {
      var offsetParent, offset,
        elem = this[0],
        parentOffset = {
          top: 0,
          left: 0
        };
      if (!elem) {
        return
      }
      if (this.css("position") === "fixed") {
        offset = elem.getBoundingClientRect()
      } else {
        offsetParent = this.offsetParent() //得到真正的offsetParent
        offset = this.offset() // 得到正确的offsetParent
        if (offsetParent[0].tagName !== "HTML") {
          parentOffset = offsetParent.offset()
        }
        parentOffset.top += avalon.css(offsetParent[0], "borderTopWidth", true)
        parentOffset.left += avalon.css(offsetParent[0], "borderLeftWidth", true)
        // Subtract offsetParent scroll positions
        parentOffset.top -= offsetParent.scrollTop()
        parentOffset.left -= offsetParent.scrollLeft()
      }
      return {
        top: offset.top - parentOffset.top - avalon.css(elem, "marginTop", true),
        left: offset.left - parentOffset.left - avalon.css(elem, "marginLeft", true)
      }
    },
    offsetParent: function () {
      var offsetParent = this[0].offsetParent
      while (offsetParent && avalon.css(offsetParent, "position") === "static") {
        offsetParent = offsetParent.offsetParent;
      }
      return avalon(offsetParent || root)
    },
    bind: function (type, fn, phase) {
      if (this[0]) { //此方法不会链
        return avalon.bind(this[0], type, fn, phase)
      }
    },
    unbind: function (type, fn, phase) {
      if (this[0]) {
        avalon.unbind(this[0], type, fn, phase)
      }
      return this
    },
    val: function (value) {
      var node = this[0]
      if (node && node.nodeType === 1) {
        var get = arguments.length === 0
        var access = get ? ":get" : ":set"
        var fn = valHooks[getValType(node) + access]
        if (fn) {
          var val = fn(node, value)
        } else if (get) {
          return (node.value || "").replace(/\r/g, "")
        } else {
          node.value = value
        }
      }
      return get ? val : this
    }
  })

  if (root.dataset) {
    avalon.fn.data = function (name, val) {
      name = name && camelize(name)
      var dataset = this[0].dataset
      switch (arguments.length) {
        case 2:
          dataset[name] = val
          return this
        case 1:
          val = dataset[name]
          return parseData(val)
        case 0:
          var ret = Object.create(null)
          for (name in dataset) {
            ret[name] = parseData(dataset[name])
          }
          return ret
      }
    }
  }
  var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/
  avalon.parseJSON = JSON.parse

  function parseData(data) {
    try {
      if (typeof data === "object")
        return data
      data = data === "true" ? true :
        data === "false" ? false :
          data === "null" ? null : +data + "" === data ? +data : rbrace.test(data) ? JSON.parse(data) : data
    } catch (e) {
    }
    return data
  }

  avalon.fireDom = function (elem, type, opts) {
    var hackEvent = DOC.createEvent("Events");
    hackEvent.initEvent(type, true, true)
    avalon.mix(hackEvent, opts)
    elem.dispatchEvent(hackEvent)
  }

  avalon.each({
    scrollLeft: "pageXOffset",
    scrollTop: "pageYOffset"
  }, function (method, prop) {
    avalon.fn[method] = function (val) {
      var node = this[0] || {},
        win = getWindow(node),
        top = method === "scrollTop"
      if (!arguments.length) {
        return win ? win[prop] : node[method]
      } else {
        if (win) {
          win.scrollTo(!top ? val : win[prop], top ? val : win[prop])
        } else {
          node[method] = val
        }
      }
    }
  })

  function getWindow(node) {
    return node.window && node.document ? node : node.nodeType === 9 ? node.defaultView : false
  }

//=============================css相关==================================
  var cssHooks = avalon.cssHooks = Object.create(null)
  var prefixes = ["", "-webkit-", "-moz-", "-ms-"] //去掉opera-15的支持
  var cssMap = {
    "float": "cssFloat"
  }
  avalon.cssNumber = oneObject("animationIterationCount,animationIterationCount,columnCount,order,flex,flexGrow,flexShrink,fillOpacity,fontWeight,lineHeight,opacity,orphans,widows,zIndex,zoom")

  avalon.cssName = function (name, host, camelCase) {
    if (cssMap[name]) {
      return cssMap[name]
    }
    host = host || root.style
    for (var i = 0, n = prefixes.length; i < n; i++) {
      camelCase = camelize(prefixes[i] + name)
      if (camelCase in host) {
        return (cssMap[name] = camelCase)
      }
    }
    return null
  }
  cssHooks["@:set"] = function (node, name, value) {
    node.style[name] = value
  }

  cssHooks["@:get"] = function (node, name) {
    if (!node || !node.style) {
      throw new Error("getComputedStyle要求传入一个节点 " + node)
    }
    var ret, computed = getComputedStyle(node)
    if (computed) {
      ret = name === "filter" ? computed.getPropertyValue(name) : computed[name]
      if (ret === "") {
        ret = node.style[name] //其他浏览器需要我们手动取内联样式
      }
    }
    return ret
  }
  cssHooks["opacity:get"] = function (node) {
    var ret = cssHooks["@:get"](node, "opacity")
    return ret === "" ? "1" : ret
  }

  "top,left".replace(rword, function (name) {
    cssHooks[name + ":get"] = function (node) {
      var computed = cssHooks["@:get"](node, name)
      return /px$/.test(computed) ? computed :
        avalon(node).position()[name] + "px"
    }
  })
  var cssShow = {
    position: "absolute",
    visibility: "hidden",
    display: "block"
  }
  var rdisplayswap = /^(none|table(?!-c[ea]).+)/

  function showHidden(node, array) {
    //http://www.cnblogs.com/rubylouvre/archive/2012/10/27/2742529.html
    if (node.offsetWidth <= 0) { //opera.offsetWidth可能小于0
      var styles = getComputedStyle(node, null)
      if (rdisplayswap.test(styles["display"])) {
        var obj = {
          node: node
        }
        for (var name in cssShow) {
          obj[name] = styles[name]
          node.style[name] = cssShow[name]
        }
        array.push(obj)
      }
      var parent = node.parentNode
      if (parent && parent.nodeType === 1) {
        showHidden(parent, array)
      }
    }
  }

  "Width,Height".replace(rword, function (name) { //fix 481
    var method = name.toLowerCase(),
      clientProp = "client" + name,
      scrollProp = "scroll" + name,
      offsetProp = "offset" + name
    cssHooks[method + ":get"] = function (node, which, override) {
      var boxSizing = -4
      if (typeof override === "number") {
        boxSizing = override
      }
      which = name === "Width" ? ["Left", "Right"] : ["Top", "Bottom"]
      var ret = node[offsetProp] // border-box 0
      if (boxSizing === 2) { // margin-box 2
        return ret + avalon.css(node, "margin" + which[0], true) + avalon.css(node, "margin" + which[1], true)
      }
      if (boxSizing < 0) { // padding-box  -2
        ret = ret - avalon.css(node, "border" + which[0] + "Width", true) - avalon.css(node, "border" + which[1] + "Width", true)
      }
      if (boxSizing === -4) { // content-box -4
        ret = ret - avalon.css(node, "padding" + which[0], true) - avalon.css(node, "padding" + which[1], true)
      }
      return ret
    }
    cssHooks[method + "&get"] = function (node) {
      var hidden = [];
      showHidden(node, hidden);
      var val = cssHooks[method + ":get"](node)
      for (var i = 0, obj; obj = hidden[i++];) {
        node = obj.node
        for (var n in obj) {
          if (typeof obj[n] === "string") {
            node.style[n] = obj[n]
          }
        }
      }
      return val;
    }
    avalon.fn[method] = function (value) { //会忽视其display
      var node = this[0]
      if (arguments.length === 0) {
        if (node.setTimeout) { //取得窗口尺寸,IE9后可以用node.innerWidth /innerHeight代替
          return node["inner" + name]
        }
        if (node.nodeType === 9) { //取得页面尺寸
          var doc = node.documentElement
          //FF chrome    html.scrollHeight< body.scrollHeight
          //IE 标准模式 : html.scrollHeight> body.scrollHeight
          //IE 怪异模式 : html.scrollHeight 最大等于可视窗口多一点？
          return Math.max(node.body[scrollProp], doc[scrollProp], node.body[offsetProp], doc[offsetProp], doc[clientProp])
        }
        return cssHooks[method + "&get"](node)
      } else {
        return this.css(method, value)
      }
    }
    avalon.fn["inner" + name] = function () {
      return cssHooks[method + ":get"](this[0], void 0, -2)
    }
    avalon.fn["outer" + name] = function (includeMargin) {
      return cssHooks[method + ":get"](this[0], void 0, includeMargin === true ? 2 : 0)
    }
  })
  avalon.fn.offset = function () { //取得距离页面左右角的坐标
    var node = this[0]
    try {
      var rect = node.getBoundingClientRect()
      // Make sure element is not hidden (display: none) or disconnected
      // https://github.com/jquery/jquery/pull/2043/files#r23981494
      if (rect.width || rect.height || node.getClientRects().length) {
        var doc = node.ownerDocument
        var root = doc.documentElement
        var win = doc.defaultView
        return {
          top: rect.top + win.pageYOffset - root.clientTop,
          left: rect.left + win.pageXOffset - root.clientLeft
        }
      }
    } catch (e) {
      return {
        left: 0,
        top: 0
      }
    }
  }

//=============================val相关=======================

  function getValType(elem) {
    var ret = elem.tagName.toLowerCase()
    return ret === "input" && /checkbox|radio/.test(elem.type) ? "checked" : ret
  }

  var valHooks = {
    "select:get": function (node, value) {
      var option, options = node.options,
        index = node.selectedIndex,
        one = node.type === "select-one" || index < 0,
        values = one ? null : [],
        max = one ? index + 1 : options.length,
        i = index < 0 ? max : one ? index : 0
      for (; i < max; i++) {
        option = options[i]
        //旧式IE在reset后不会改变selected，需要改用i === index判定
        //我们过滤所有disabled的option元素，但在safari5下，如果设置select为disable，那么其所有孩子都disable
        //因此当一个元素为disable，需要检测其是否显式设置了disable及其父节点的disable情况
        if ((option.selected || i === index) && !option.disabled) {
          value = option.value
          if (one) {
            return value
          }
          //收集所有selected值组成数组返回
          values.push(value)
        }
      }
      return values
    },
    "select:set": function (node, values, optionSet) {
      values = [].concat(values) //强制转换为数组
      for (var i = 0, el; el = node.options[i++];) {
        if ((el.selected = values.indexOf(el.value) > -1)) {
          optionSet = true
        }
      }
      if (!optionSet) {
        node.selectedIndex = -1
      }
    }
  }

  var keyMap = {}
  var keys = ["break,case,catch,continue,debugger,default,delete,do,else,false",
    "finally,for,function,if,in,instanceof,new,null,return,switch,this",
    "throw,true,try,typeof,var,void,while,with", /* 关键字*/
    "abstract,boolean,byte,char,class,const,double,enum,export,extends",
    "final,float,goto,implements,import,int,interface,long,native",
    "package,private,protected,public,short,static,super,synchronized",
    "throws,transient,volatile", /*保留字*/
    "arguments,let,yield,undefined"].join(",")
  keys.replace(/\w+/g, function (a) {
    keyMap[a] = true
  })
  var ridentStart = /[a-z_$]/i
  var rwhiteSpace = /[\s\uFEFF\xA0]/

  function getIdent(input, lastIndex) {
    var result = []
    var subroutine = !!lastIndex
    lastIndex = lastIndex || 0

    //将表达式中的标识符抽取出来
    var state = "unknown"
    var variable = ""
    for (var i = 0; i < input.length; i++) {
      var c = input.charAt(i)
      if (c === "'" || c === '"') {//字符串开始
        if (state === "unknown") {
          state = c
        } else if (state === c) {//字符串结束
          state = "unknown"
        }
      } else if (c === "\\") {
        if (state === "'" || state === '"') {
          i++
        }
      } else if (ridentStart.test(c)) {//碰到标识符
        if (state === "unknown") {
          state = "variable"
          variable = c
        } else if (state === "maybePath") {
          variable = result.pop()
          variable += "." + c
          state = "variable"
        } else if (state === "variable") {
          variable += c
        }
      } else if (/\w/.test(c)) {
        if (state === "variable") {
          variable += c
        }
      } else if (c === ".") {
        if (state === "variable") {
          if (variable) {
            result.push(variable)
            variable = ""
            state = "maybePath"
          }
        }
      } else if (c === "[") {
        if (state === "variable" || state === "maybePath") {
          if (variable) {//如果前面存在变量,收集它
            result.push(variable)
            variable = ""
          }
          var lastLength = result.length
          var last = result[lastLength - 1]
          var innerResult = getIdent(input.slice(i), i)
          if (innerResult.length) {//如果括号中存在变量,那么这里添加通配符
            result[lastLength - 1] = last + ".*"
            result = innerResult.concat(result)
          } else { //如果括号中的东西是确定的,直接转换为其子属性
            var content = input.slice(i + 1, innerResult.i)
            try {
              var text = (scpCompile(["return " + content]))()
              result[lastLength - 1] = last + "." + text
            } catch (e) {
            }
          }
          state = "maybePath"//]后面可能还接东西
          i = innerResult.i
        }
      } else if (c === "]") {
        if (subroutine) {
          result.i = i + lastIndex
          addVar(result, variable)
          return result
        }
      } else if (rwhiteSpace.test(c) && c !== "\r" && c !== "\n") {
        if (state === "variable") {
          if (addVar(result, variable)) {
            state = "maybePath" // aaa . bbb 这样的情况
          }
          variable = ""
        }
      } else {
        addVar(result, variable)
        state = "unknown"
        variable = ""
      }
    }
    addVar(result, variable)
    return result
  }

  function addVar(array, element) {
    if (element && !keyMap[element]) {
      array.push(element)
      return true
    }
  }

  function addAssign(vars, vmodel, name, binding) {
    var ret = [],
      prefix = " = " + name + "."
    for (var i = vars.length, prop; prop = vars[--i];) {
      var arr = prop.split("."), a
      var first = arr[0]
      while (a = arr.shift()) {
        if (vmodel.hasOwnProperty(a)) {
          ret.push(first + prefix + first)

          binding.observers.push({
            v: vmodel,
            p: prop
          })

          vars.splice(i, 1)
        }
      }
    }
    return ret
  }

  var rproxy = /(\$proxy\$[a-z]+)\d+$/
  var variablePool = new Cache(218)
//缓存求值函数，以便多次利用
  var evaluatorPool = new Cache(128)

  function getVars(expr) {
    expr = expr.trim()
    var ret = variablePool.get(expr)
    if (ret) {
      return ret.concat()
    }
    var array = getIdent(expr)
    var uniq = {}
    var result = []
    for (var i = 0, el; el = array[i++];) {
      if (!uniq[el]) {
        uniq[el] = 1
        result.push(el)
      }
    }
    return variablePool.put(expr, result).concat()
  }

  function parseExpr(expr, vmodels, binding) {
    var filters = binding.filters
    if (typeof filters === "string" && filters.trim() && !binding._filters) {
      binding._filters = parseFilter(filters.trim())
    }

    var vars = getVars(expr)

    var expose = new Date() - 0
    var assigns = []
    var names = []
    var args = []
    binding.observers = []
    for (var i = 0, sn = vmodels.length; i < sn; i++) {
      if (vars.length) {
        var name = "vm" + expose + "_" + i
        names.push(name)
        args.push(vmodels[i])
        assigns.push.apply(assigns, addAssign(vars, vmodels[i], name, binding))
      }
    }
    binding.args = args
    var dataType = binding.type
    var exprId = vmodels.map(function (el) {
      return String(el.$id).replace(rproxy, "$1")
    }) + expr + dataType
    var getter = evaluatorPool.get(exprId) //直接从缓存，免得重复生成
    if (getter) {
      if (dataType === "duplex") {
        var setter = evaluatorPool.get(exprId + "setter")
        binding.setter = setter.apply(setter, binding.args)
      }
      return binding.getter = getter
    }

    if (!assigns.length) {
      assigns.push("fix" + expose)
    }

    if (dataType === "duplex") {
      var nameOne = {}
      assigns.forEach(function (a) {
        var arr = a.split("=")
        nameOne[arr[0].trim()] = arr[1].trim()
      })
      expr = expr.replace(/[\$\w]+/, function (a) {
        return nameOne[a] ? nameOne[a] : a
      })
      /* jshint ignore:start */
      var fn2 = scpCompile(names.concat("'use strict';" +
        "return function(vvv){" + expr + " = vvv\n}\n"))
      /* jshint ignore:end */
      evaluatorPool.put(exprId + "setter", fn2)
      binding.setter = fn2.apply(fn2, binding.args)
    }

    if (dataType === "on") { //事件绑定
      if (expr.indexOf("(") === -1) {
        expr += ".call(this, $event)"
      } else {
        expr = expr.replace("(", ".call(this,")
      }
      names.push("$event")
      expr = "\nreturn " + expr + ";" //IE全家 Function("return ")出错，需要Function("return ;")
      var lastIndex = expr.lastIndexOf("\nreturn")
      var header = expr.slice(0, lastIndex)
      var footer = expr.slice(lastIndex)
      expr = header + "\n" + footer
    } else {
      expr = "\nreturn " + expr + ";" //IE全家 Function("return ")出错，需要Function("return ;")
    }
    /* jshint ignore:start */
    getter = scpCompile(names.concat("'use strict';\nvar " +
      assigns.join(",\n") + expr))
    /* jshint ignore:end */

    return evaluatorPool.put(exprId, getter)

  }

//========

  function normalizeExpr(code) {
    var hasExpr = rexpr.test(code) //比如ms-class="width{{w}}"的情况
    if (hasExpr) {
      var array = scanExpr(code)
      if (array.length === 1) {
        return array[0].expr
      }
      return array.map(function (el) {
        return el.type ? "(" + el.expr + ")" : quote(el.expr)
      }).join(" + ")
    } else {
      return code
    }
  }

  avalon.normalizeExpr = normalizeExpr
  avalon.parseExprProxy = parseExpr

  var rthimRightParentheses = /\)\s*$/
  var rthimOtherParentheses = /\)\s*\|/g
  var rquoteFilterName = /\|\s*([$\w]+)/g
  var rpatchBracket = /"\s*\["/g
  var rthimLeftParentheses = /"\s*\(/g

  function parseFilter(filters) {
    filters = filters
      .replace(rthimRightParentheses, "")//处理最后的小括号
      .replace(rthimOtherParentheses, function () {//处理其他小括号
        return "],|"
      })
      .replace(rquoteFilterName, function (a, b) { //处理|及它后面的过滤器的名字
        return "[" + quote(b)
      })
      .replace(rpatchBracket, function () {
        return '"],["'
      })
      .replace(rthimLeftParentheses, function () {
        return '",'
      }) + "]"
    /* jshint ignore:start */
    return scpCompile(["return [" + filters + "]"])()
    /* jshint ignore:end */

  }

  /*********************************************************************
   *                          编译系统                                  *
   **********************************************************************/
  var quote = JSON.stringify
  /*********************************************************************
   *                           扫描系统                                 *
   **********************************************************************/

  avalon.scan = function (elem, vmodel) {
    elem = elem || root
    var vmodels = vmodel ? [].concat(vmodel) : []
    scanTag(elem, vmodels)
  }

//http://www.w3.org/TR/html5/syntax.html#void-elements
  var stopScan = oneObject("area,base,basefont,br,col,command,embed,hr,img,input,link,meta,param,source,track,wbr,noscript,script,style,textarea".toUpperCase())

  function checkScan(elem, callback, innerHTML) {
    var id = setTimeout(function () {
      var currHTML = elem.innerHTML
      clearTimeout(id)
      if (currHTML === innerHTML) {
        callback()
      } else {
        checkScan(elem, callback, currHTML)
      }
    })
  }


  function createSignalTower(elem, vmodel) {
    var id = elem.getAttribute("avalonctrl") || vmodel.$id
    elem.setAttribute("avalonctrl", id)
    if (vmodel.$events) {
      vmodel.$events.expr = elem.tagName + '[avalonctrl="' + id + '"]'
    }
  }

  var getBindingCallback = function (elem, name, vmodels) {
    var callback = elem.getAttribute(name)
    if (callback) {
      for (var i = 0, vm; vm = vmodels[i++];) {
        if (vm.hasOwnProperty(callback) && typeof vm[callback] === "function") {
          return vm[callback]
        }
      }
    }
  }

  function executeBindings(bindings, vmodels) {
    for (var i = 0, binding; binding = bindings[i++];) {
      binding.vmodels = vmodels
      directives[binding.type].init(binding)

      avalon.injectBinding(binding)
      if (binding.getter && binding.element.nodeType === 1) { //移除数据绑定，防止被二次解析
        //chrome使用removeAttributeNode移除不存在的特性节点时会报错 https://github.com/RubyLouvre/avalon/issues/99
        binding.element.removeAttribute(binding.name)
      }
    }
    bindings.length = 0
  }

//https://github.com/RubyLouvre/avalon/issues/636
  var mergeTextNodes = IEVersion && window.MutationObserver ? function (elem) {
    var node = elem.firstChild, text
    while (node) {
      var aaa = node.nextSibling
      if (node.nodeType === 3) {
        if (text) {
          text.nodeValue += node.nodeValue
          elem.removeChild(node)
        } else {
          text = node
        }
      } else {
        text = null
      }
      node = aaa
    }
  } : 0
  var roneTime = /^\s*::/
  var rmsAttr = /ms-(\w+)-?(.*)/

  var events = oneObject("animationend,blur,change,input,click,dblclick,focus,keydown,keypress,keyup,mousedown,mouseenter,mouseleave,mousemove,mouseout,mouseover,mouseup,scan,scroll,submit")
  var obsoleteAttrs = oneObject("value,title,alt,checked,selected,disabled,readonly,enabled,href,src")

  function bindingSorter(a, b) {
    return a.priority - b.priority
  }


  var rnoCollect = /^(ms-\S+|data-\S+|on[a-z]+|id|style|class)$/
  var ronattr = /^on\-[\w-]+$/

  function getOptionsFromTag(elem, vmodels) {
    var attributes = elem.attributes
    var ret = {}
    for (var i = 0, attr; attr = attributes[i++];) {
      var name = attr.name
      if (attr.specified && !rnoCollect.test(name)) {
        var camelizeName = camelize(attr.name)
        if (/^on\-[\w-]+$/.test(name)) {
          ret[camelizeName] = getBindingCallback(elem, name, vmodels)
        } else {
          ret[camelizeName] = parseData(attr.value)
        }
      }

    }
    return ret
  }

  function scanAttr(elem, vmodels, match) {
    var scanNode = true
    if (vmodels.length) {
      var attributes = elem.attributes
      var bindings = []
      var uniq = {}
      for (var i = 0, attr; attr = attributes[i++];) {
        var name = attr.name
        if (uniq[name]) {//IE8下ms-repeat,ms-with BUG
          continue
        }
        uniq[name] = 1
        if (attr.specified) {
          if (match = name.match(rmsAttr)) {
            //如果是以指定前缀命名的
            var type = match[1]
            var param = match[2] || ""
            var value = attr.value
            if (events[type]) {
              param = type
              type = "on"
            } else if (obsoleteAttrs[type]) {
              param = type
              type = "attr"
              name = "ms-" + type + "-" + param
              log("warning!请改用" + name + "代替" + attr.name + "!")
            }
            if (directives[type]) {
              var newValue = value.replace(roneTime, "")
              var oneTime = value !== newValue
              var binding = {
                type: type,
                param: param,
                element: elem,
                name: name,
                expr: newValue,
                oneTime: oneTime,
                priority: (directives[type].priority || type.charCodeAt(0) * 10) + (Number(param.replace(/\D/g, "")) || 0)
              }
              if (type === "html" || type === "text") {

                var filters = getToken(value).filters
                binding.expr = binding.expr.replace(filters, "")
                binding.filters = filters.replace(rhasHtml, function () {
                  binding.type = "html"
                  binding.group = 1
                  return ""
                }).trim() // jshint ignore:line
              } else if (type === "duplex") {
                var hasDuplex = name
              } else if (name === "ms-if-loop") {
                binding.priority += 100
              } else if (name === "ms-attr-value") {
                var hasAttrValue = name
              }
              bindings.push(binding)
            }
          }
        }
      }
      if (bindings.length) {
        bindings.sort(bindingSorter)

        if (hasDuplex && hasAttrValue && elem.type === "text") {
          log("warning!一个控件不能同时定义ms-attr-value与" + hasDuplex)
        }

        for (i = 0; binding = bindings[i]; i++) {
          type = binding.type
          if (rnoscanAttrBinding.test(type)) {
            return executeBindings(bindings.slice(0, i + 1), vmodels)
          } else if (scanNode) {
            scanNode = !rnoscanNodeBinding.test(type)
          }
        }
        executeBindings(bindings, vmodels)
      }
    }
    if (scanNode && !stopScan[elem.tagName]) {
      mergeTextNodes && mergeTextNodes(elem)
      scanNodeList(elem, vmodels) //扫描子孙元素
    }
  }

  var rnoscanAttrBinding = /^if|widget|repeat$/
  var rnoscanNodeBinding = /^each|with|html|include$/


  function scanNodeList(parent, vmodels) {
    var nodes = avalon.slice(parent.childNodes)
    scanNodeArray(nodes, vmodels)
  }


  function scanNodeArray(nodes, vmodels) {
    for (var i = 0, node; node = nodes[i++];) {
      switch (node.nodeType) {
        case 1:
          var elem = node
          if (!elem.msResolved && elem.parentNode && elem.parentNode.nodeType === 1) {
            var library = isWidget(elem)
            if (library) {
              var widget = elem.localName ? elem.localName.replace(library + ":", "") : elem.nodeName
              var fullName = library + ":" + camelize(widget)
              componentQueue.push({
                library: library,
                element: elem,
                fullName: fullName,
                widget: widget,
                vmodels: vmodels,
                name: "widget"
              })
              if (avalon.components[fullName]) {
                (function (name) {//确保所有ms-attr-name扫描完再处理
                  setTimeout(function () {
                    avalon.component(name)
                  })
                })(fullName)
              }
            }
          }

          scanTag(node, vmodels) //扫描元素节点

          if (node.msHasEvent) {
            avalon.fireDom(node, "datasetchanged", {
              bubble: node.msHasEvent
            })
          }

          break
        case 3:
          if (rexpr.test(node.nodeValue)) {
            scanText(node, vmodels, i) //扫描文本节点
          }
          break
      }

    }
  }


  function scanTag(elem, vmodels, node) {
    //扫描顺序  ms-skip(0) --> ms-important(1) --> ms-controller(2) --> ms-if(10) --> ms-repeat(100)
    //--> ms-if-loop(110) --> ms-attr(970) ...--> ms-each(1400)-->ms-with(1500)--〉ms-duplex(2000)垫后
    var a = elem.getAttribute("ms-skip")
    var b = elem.getAttributeNode("ms-important")
    var c = elem.getAttributeNode("ms-controller")
    if (typeof a === "string") {
      return
    } else if (node = b || c) {
      var newVmodel = avalon.vmodels[node.value]
      if (!newVmodel) {
        return
      }
      //ms-important不包含父VM，ms-controller相反
      vmodels = node === b ? [newVmodel] : [newVmodel].concat(vmodels)
      elem.removeAttribute(node.name) //removeAttributeNode不会刷新[ms-controller]样式规则
      elem.classList.remove(node.name)
      createSignalTower(elem, newVmodel)
    }
    scanAttr(elem, vmodels) //扫描特性节点
  }

  var rhasHtml = /\|\s*html(?:\b|$)/,
    r11a = /\|\|/g,
    rlt = /&lt;/g,
    rgt = /&gt;/g,
    rstringLiteral = /(['"])(\\\1|.)+?\1/g

  function getToken(value) {
    if (value.indexOf("|") > 0) {
      var scapegoat = value.replace(rstringLiteral, function (_) {
        return Array(_.length + 1).join("1") // jshint ignore:line
      })
      var index = scapegoat.replace(r11a, "\u1122\u3344").indexOf("|") //干掉所有短路或
      if (index > -1) {
        return {
          type: "text",
          filters: value.slice(index).trim(),
          expr: value.slice(0, index)
        }
      }
    }
    return {
      type: "text",
      expr: value,
      filters: ""
    }
  }

  function scanExpr(str) {
    var tokens = [],
      value, start = 0,
      stop
    do {
      stop = str.indexOf(openTag, start)
      if (stop === -1) {
        break
      }
      value = str.slice(start, stop)
      if (value) { // {{ 左边的文本
        tokens.push({
          expr: value
        })
      }
      start = stop + openTag.length
      stop = str.indexOf(closeTag, start)
      if (stop === -1) {
        break
      }
      value = str.slice(start, stop)
      if (value) { //处理{{ }}插值表达式
        tokens.push(getToken(value, start))
      }
      start = stop + closeTag.length
    } while (1)
    value = str.slice(start)
    if (value) { //}} 右边的文本
      tokens.push({
        expr: value
      })
    }
    return tokens
  }

  function scanText(textNode, vmodels, index) {
    var bindings = [],
      tokens = scanExpr(textNode.data)
    if (tokens.length) {
      for (var i = 0, token; token = tokens[i++];) {
        var node = DOC.createTextNode(token.expr) //将文本转换为文本节点，并替换原来的文本节点
        if (token.type) {
          token.expr = token.expr.replace(roneTime, function () {
            token.oneTime = true
            return ""
          }) // jshint ignore:line
          token.element = node
          token.filters = token.filters.replace(rhasHtml, function () {
            token.type = "html"
            return ""
          }) // jshint ignore:line
          token.pos = index * 1000 + i
          bindings.push(token) //收集带有插值表达式的文本
        }
        avalonFragment.appendChild(node)
      }
      textNode.parentNode.replaceChild(avalonFragment, textNode)
      if (bindings.length)
        executeBindings(bindings, vmodels)
    }
  }


//使用来自游戏界的双缓冲技术,减少对视图的冗余刷新
  var Buffer = function () {
    this.queue = []
  }
  Buffer.prototype = {
    render: function (isAnimate) {
      if (!this.locked) {
        this.locked = isAnimate ? root.offsetHeight + 10 : 1
        var me = this
        avalon.nextTick(function () {
          me.flush()
        })
      }
    },
    flush: function () {
      for (var i = 0, sub; sub = this.queue[i++];) {
        sub.update && sub.update()
      }
      this.locked = 0
      this.queue = []
    }
  }

  var buffer = new Buffer()
  var componentQueue = []
  var widgetList = []
  var componentHooks = {
    $construct: function () {
      return avalon.mix.apply(null, arguments)
    },
    $ready: noop,
    $init: noop,
    $dispose: noop,
    $container: null,
    $childReady: noop,
    $replace: false,
    $extend: null,
    $$template: function (str) {
      return str
    }
  }


  avalon.components = {}
  avalon.component = function (name, opts) {
    if (opts) {
      avalon.components[name] = avalon.mix({}, componentHooks, opts)
    }
    for (var i = 0, obj; obj = componentQueue[i]; i++) {
      if (name === obj.fullName) {
        componentQueue.splice(i, 1)
        i--;

        (function (host, hooks, elem, widget) {
          //如果elem已从Document里移除,直接返回
          //issuse : https://github.com/RubyLouvre/avalon2/issues/40
          if (!avalon.contains(DOC, elem)) {
            avalon.Array.remove(componentQueue, host)
            return
          }

          var dependencies = 1
          var library = host.library
          var global = avalon.libraries[library] || componentHooks

          //===========收集各种配置=======
          if (elem.getAttribute("ms-attr-identifier")) {
            //如果还没有解析完,就延迟一下 #1155
            return
          }
          var elemOpts = getOptionsFromTag(elem, host.vmodels)
          var vmOpts = getOptionsFromVM(host.vmodels, elemOpts.config || host.widget)
          var $id = elemOpts.$id || elemOpts.identifier || generateID(widget)
          delete elemOpts.config
          delete elemOpts.$id
          delete elemOpts.identifier
          var componentDefinition = {}

          var parentHooks = avalon.components[hooks.$extend]
          if (parentHooks) {
            avalon.mix(true, componentDefinition, parentHooks)
            componentDefinition = parentHooks.$construct.call(elem, componentDefinition, {}, {})
          } else {
            avalon.mix(true, componentDefinition, hooks)
          }
          componentDefinition = avalon.components[name].$construct.call(elem, componentDefinition, vmOpts, elemOpts)

          componentDefinition.$refs = {}
          componentDefinition.$id = $id

          //==========构建VM=========
          var keepSlot = componentDefinition.$slot
          var keepReplace = componentDefinition.$replace
          var keepContainer = componentDefinition.$container
          var keepTemplate = componentDefinition.$template
          delete componentDefinition.$slot
          delete componentDefinition.$replace
          delete componentDefinition.$container
          delete componentDefinition.$construct

          var vmodel = avalon.define(componentDefinition) || {}
          elem.msResolved = 1
          vmodel.$init(vmodel, elem)
          global.$init(vmodel, elem)
          var nodes = elem.childNodes
          //收集插入点
          var slots = {}, snode
          for (var s = 0, el; el = nodes[s++];) {
            var type = el.nodeType === 1 && el.getAttribute("slot") || keepSlot
            if (type) {
              if (slots[type]) {
                slots[type].push(el)
              } else {
                slots[type] = [el]
              }
            }
          }


          if (vmodel.$$template) {
            avalon.clearHTML(elem)
            elem.innerHTML = vmodel.$$template(keepTemplate)
          }
          for (s in slots) {
            if (vmodel.hasOwnProperty(s)) {
              var ss = slots[s]
              if (ss.length) {
                var fragment = avalonFragment.cloneNode(true)
                for (var ns = 0; snode = ss[ns++];) {
                  fragment.appendChild(snode)
                }
                vmodel[s] = fragment
              }
              slots[s] = null
            }
          }
          slots = null
          var child = elem.children[0] || elem.firstChild
          if (keepReplace) {
            elem.parentNode.replaceChild(child, elem)
            child.msResolved = 1
            var cssText = elem.style.cssText
            var className = elem.className
            elem = host.element = child
            elem.style.cssText = cssText
            if (className) {
              avalon(elem).addClass(className)
            }
          }
          if (keepContainer) {
            keepContainer.appendChild(elem)
          }
          avalon.fireDom(elem, "datasetchanged",
            {library: library, vm: vmodel, childReady: 1})
          var children = 0
          var removeFn = avalon.bind(elem, "datasetchanged", function (e) {
            if (e.childReady && e.library === library) {
              dependencies += e.childReady
              if (vmodel !== e.vm) {
                vmodel.$refs[e.vm.$id] = e.vm
                if (e.childReady === -1) {
                  children++
                  vmodel.$childReady(vmodel, elem, e)
                }
                e.stopPropagation()
              }
            }
            if (dependencies === 0) {
              var id1 = setTimeout(function () {
                clearTimeout(id1)

                vmodel.$ready(vmodel, elem, host.vmodels)
                global.$ready(vmodel, elem, host.vmodels)
              }, children ? Math.max(children * 17, 100) : 17)
              avalon.unbind(elem, "datasetchanged", removeFn)
              //==================
              host.rollback = function () {
                try {
                  vmodel.$dispose(vmodel, elem)
                  global.$dispose(vmodel, elem)
                } catch (e) {
                }
                delete avalon.vmodels[vmodel.$id]
              }
              injectDisposeQueue(host, widgetList)
              if (window.chrome) {
                elem.addEventListener("DOMNodeRemovedFromDocument", function () {
                  setTimeout(rejectDisposeQueue)
                })
              }

            }
          })
          scanTag(elem, [vmodel].concat(host.vmodels))

          avalon.vmodels[vmodel.$id] = vmodel
          if (!elem.childNodes.length) {
            avalon.fireDom(elem, "datasetchanged", {library: library, vm: vmodel, childReady: -1})
          } else {
            var id2 = setTimeout(function () {
              clearTimeout(id2)
              avalon.fireDom(elem, "datasetchanged", {library: library, vm: vmodel, childReady: -1})
            }, 17)
          }


        })(obj, avalon.components[name], obj.element, obj.widget)// jshint ignore:line


      }
    }
  }


  function getOptionsFromVM(vmodels, pre) {
    if (pre) {
      for (var i = 0, v; v = vmodels[i++];) {
        if (v.hasOwnProperty(pre) && typeof v[pre] === "object") {
          var vmOptions = v[pre]
          return vmOptions.$model || vmOptions
          break
        }
      }
    }
    return {}
  }


  avalon.libraries = []
  avalon.library = function (name, opts) {
    if (DOC.namespaces) {
      DOC.namespaces.add(name, 'http://www.w3.org/1999/xhtml');
    }
    avalon.libraries[name] = avalon.mix({
      $init: noop,
      $ready: noop,
      $dispose: noop
    }, opts || {})
  }

  avalon.library("ms")

  /*
 broswer  nodeName  scopeName  localName
 IE9     ONI:BUTTON oni        button
 IE10    ONI:BUTTON undefined  oni:button
 IE8     button     oni        undefined
 chrome  ONI:BUTTON undefined  oni:button

 */
  function isWidget(el) { //如果为自定义标签,返回UI库的名字
    if (el.scopeName && el.scopeName !== "HTML") {
      return el.scopeName
    }
    var fullName = el.nodeName.toLowerCase()
    var index = fullName.indexOf(":")
    if (index > 0) {
      return fullName.slice(0, index)
    }
  }

//各种MVVM框架在大型表格下的性能测试
// https://github.com/RubyLouvre/avalon/issues/859


  var bools = ["autofocus,autoplay,async,allowTransparency,checked,controls",
    "declare,disabled,defer,defaultChecked,defaultSelected",
    "contentEditable,isMap,loop,multiple,noHref,noResize,noShade",
    "open,readOnly,selected"
  ].join(",")
  var boolMap = {}
  bools.replace(rword, function (name) {
    boolMap[name.toLowerCase()] = name
  })

  var propMap = {//属性名映射
    "accept-charset": "acceptCharset",
    "char": "ch",
    "charoff": "chOff",
    "class": "className",
    "for": "htmlFor",
    "http-equiv": "httpEquiv"
  }

  var anomaly = ["accessKey,bgColor,cellPadding,cellSpacing,codeBase,codeType,colSpan",
    "dateTime,defaultValue,frameBorder,longDesc,maxLength,marginWidth,marginHeight",
    "rowSpan,tabIndex,useMap,vSpace,valueType,vAlign"
  ].join(",")
  anomaly.replace(rword, function (name) {
    propMap[name.toLowerCase()] = name
  })


  var attrDir = avalon.directive("attr", {
    init: function (binding) {
      //{{aaa}} --> aaa
      //{{aaa}}/bbb.html --> (aaa) + "/bbb.html"
      binding.expr = normalizeExpr(binding.expr.trim())
      if (binding.type === "include") {
        var elem = binding.element
        effectBinding(elem, binding)
        binding.includeRendered = getBindingCallback(elem, "data-include-rendered", binding.vmodels)
        binding.includeLoaded = getBindingCallback(elem, "data-include-loaded", binding.vmodels)
        var outer = binding.includeReplace = !!avalon(elem).data("includeReplace")
        if (avalon(elem).data("includeCache")) {
          binding.templateCache = {}
        }
        binding.start = DOC.createComment("ms-include")
        binding.end = DOC.createComment("ms-include-end")
        if (outer) {
          binding.element = binding.end
          binding._element = elem
          elem.parentNode.insertBefore(binding.start, elem)
          elem.parentNode.insertBefore(binding.end, elem.nextSibling)
        } else {
          elem.insertBefore(binding.start, elem.firstChild)
          elem.appendChild(binding.end)
        }
      }
    },
    update: function (val) {
      var elem = this.element
      var attrName = this.param
      if (attrName === "href" || attrName === "src") {
        if (typeof val === "string" && !root.hasAttribute) {
          val = val.replace(/&amp;/g, "&") //处理IE67自动转义的问题
        }
        elem[attrName] = val
        if (window.chrome && elem.tagName === "EMBED") {
          var parent = elem.parentNode //#525  chrome1-37下embed标签动态设置src不能发生请求
          var comment = document.createComment("ms-src")
          parent.replaceChild(comment, elem)
          parent.replaceChild(elem, comment)
        }
      } else {

        // ms-attr-class="xxx" vm.xxx="aaa bbb ccc"将元素的className设置为aaa bbb ccc
        // ms-attr-class="xxx" vm.xxx=false  清空元素的所有类名
        // ms-attr-name="yyy"  vm.yyy="ooo" 为元素设置name属性
        var toRemove = (val === false) || (val === null) || (val === void 0)
        if (!W3C && propMap[attrName]) { //旧式IE下需要进行名字映射
          attrName = propMap[attrName]
        }
        var bool = boolMap[attrName]
        if (typeof elem[bool] === "boolean") {
          elem[bool] = !!val //布尔属性必须使用el.xxx = true|false方式设值
          if (!val) { //如果为false, IE全系列下相当于setAttribute(xxx,''),会影响到样式,需要进一步处理
            toRemove = true
          }
        }
        if (toRemove) {
          return elem.removeAttribute(attrName)
        }
        //SVG只能使用setAttribute(xxx, yyy), VML只能使用elem.xxx = yyy ,HTML的固有属性必须elem.xxx = yyy
        var isInnate = rsvg.test(elem) ? false : (DOC.namespaces && isVML(elem)) ? true : attrName in elem.cloneNode(false)
        if (isInnate) {
          elem[attrName] = val + ""
        } else {
          elem.setAttribute(attrName, val)
        }
      }
    }
  })


//这几个指令都可以使用插值表达式，如ms-src="aaa/{{b}}/{{c}}.html"
  "title,alt,src,value,css,include,href".replace(rword, function (name) {
    directives[name] = attrDir
  })

//根据VM的属性值或表达式的值切换类名，ms-class="xxx yyy zzz:flag"
//http://www.cnblogs.com/rubylouvre/archive/2012/12/17/2818540.html
  avalon.directive("class", {
    init: function (binding) {
      var oldStyle = binding.param
      var method = binding.type
      if (!oldStyle || isFinite(oldStyle)) {
        binding.param = "" //去掉数字
        directives.effect.init(binding)
      } else {
        log('ms-' + method + '-xxx="yyy"这种用法已经过时,请使用ms-' + method + '="xxx:yyy"')
        binding.expr = '[' + quote(oldStyle) + "," + binding.expr + "]"
        binding.oldStyle = oldStyle
      }
      if (method === "hover" || method === "active") { //确保只绑定一次
        if (!binding.hasBindEvent) {
          var elem = binding.element
          var $elem = avalon(elem)
          var activate = "mouseenter" //在移出移入时切换类名
          var abandon = "mouseleave"
          if (method === "active") { //在聚焦失焦中切换类名
            elem.tabIndex = elem.tabIndex || -1
            activate = "mousedown"
            abandon = "mouseup"
            var fn0 = $elem.bind("mouseleave", function () {
              binding.toggleClass && $elem.removeClass(binding.newClass)
            })
          }
        }

        var fn1 = $elem.bind(activate, function () {
          binding.toggleClass && $elem.addClass(binding.newClass)
        })
        var fn2 = $elem.bind(abandon, function () {
          binding.toggleClass && $elem.removeClass(binding.newClass)
        })
        binding.rollback = function () {
          $elem.unbind("mouseleave", fn0)
          $elem.unbind(activate, fn1)
          $elem.unbind(abandon, fn2)
        }
        binding.hasBindEvent = true
      }

    },
    update: function (arr) {
      var binding = this
      var $elem = avalon(this.element)
      binding.newClass = arr[0]
      binding.toggleClass = !!arr[1]
      if (binding.oldClass && binding.newClass !== binding.oldClass) {
        $elem.removeClass(binding.oldClass)
      }
      binding.oldClass = binding.newClass
      if (binding.type === "class") {
        if (binding.oldStyle) {
          $elem.toggleClass(binding.oldStyle, !!arr[1])
        } else {
          $elem.toggleClass(binding.newClass, binding.toggleClass)
        }
      }
    }
  })

  "hover,active".replace(rword, function (name) {
    directives[name] = directives["class"]
  })


//ms-controller绑定已经在scanTag 方法中实现
  avalon.directive("css", {
    init: directives.attr.init,
    update: function (val) {
      avalon(this.element).css(this.param, val)
    }
  })

  avalon.directive("data", {
    priority: 100,
    update: function (val) {
      var elem = this.element
      var key = "data-" + this.param
      if (val && typeof val === "object") {
        elem[key] = val
      } else {
        elem.setAttribute(key, String(val))
      }
    }
  })

//双工绑定
  var rduplexType = /^(?:checkbox|radio)$/
  var rduplexParam = /^(?:radio|checked)$/
  var rnoduplexInput = /^(file|button|reset|submit|checkbox|radio|range)$/
  var duplexBinding = avalon.directive("duplex", {
    priority: 2000,
    init: function (binding, hasCast) {
      var elem = binding.element
      var vmodels = binding.vmodels
      binding.changed = getBindingCallback(elem, "data-duplex-changed", vmodels) || noop
      var params = []
      var casting = oneObject("string,number,boolean,checked")
      if (elem.type === "radio" && binding.param === "") {
        binding.param = "checked"
      }

      binding.param.replace(rw20g, function (name) {
        if (rduplexType.test(elem.type) && rduplexParam.test(name)) {
          if (name === "radio")
            log("ms-duplex-radio已经更名为ms-duplex-checked")
          name = "checked"
          binding.isChecked = true
          binding.xtype = "radio"
        }
        if (name === "bool") {
          name = "boolean"
          log("ms-duplex-bool已经更名为ms-duplex-boolean")
        } else if (name === "text") {
          name = "string"
          log("ms-duplex-text已经更名为ms-duplex-string")
        }
        if (casting[name]) {
          hasCast = true
        }
        avalon.Array.ensure(params, name)
      })
      if (!hasCast) {
        params.push("string")
      }
      binding.param = params.join("-")
      if (!binding.xtype) {
        binding.xtype = elem.tagName === "SELECT" ? "select" :
          elem.type === "checkbox" ? "checkbox" :
            elem.type === "radio" ? "radio" :
              /^change/.test(elem.getAttribute("data-duplex-event")) ? "change" :
                "input"
      }
      //===================绑定事件======================
      binding.bound = function (type, callback) {
        elem.addEventListener(type, callback, false)
        var old = binding.rollback
        binding.rollback = function () {
          elem.avalonSetter = null
          avalon.unbind(elem, type, callback)
          old && old()
        }
      }
      var composing = false

      function callback(value) {
        binding.changed.call(this, value, binding)
      }

      function compositionStart() {
        composing = true
      }

      function compositionEnd() {
        composing = false
      }

      var updateVModel = function (e) {
        var val = elem.value //防止递归调用形成死循环
        if (composing || val === binding.oldValue || binding.pipe === null) //处理中文输入法在minlengh下引发的BUG
          return
        var lastValue = binding.pipe(val, binding, "get")
        binding.setter(lastValue)
        callback.call(elem, lastValue)
      }
      switch (binding.xtype) {
        case "radio":
          binding.bound("click", function () {
            var lastValue = binding.pipe(elem.value, binding, "get")
            binding.setter(lastValue)
            callback.call(elem, lastValue)
          })
          break
        case "checkbox":
          binding.bound("change", function () {
            var method = elem.checked ? "ensure" : "remove"
            var array = binding.getter.apply(0, binding.vmodels)
            if (!Array.isArray(array)) {
              log("ms-duplex应用于checkbox上要对应一个数组")
              array = [array]
            }
            var val = binding.pipe(elem.value, binding, "get")
            avalon.Array[method](array, val)
            callback.call(elem, array)
          })
          break
        case "change":
          binding.bound("change", updateVModel)
          break
        case "input":
          if (!IEVersion) { // W3C
            binding.bound("input", updateVModel)
            //非IE浏览器才用这个
            binding.bound("compositionstart", compositionStart)
            binding.bound("compositionend", compositionEnd)
            binding.bound("DOMAutoComplete", updateVModel)
          } else { //onpropertychange事件无法区分是程序触发还是用户触发
            // IE下通过selectionchange事件监听IE9+点击input右边的X的清空行为，及粘贴，剪切，删除行为
            binding.bound("input", updateVModel) //IE9使用propertychange无法监听中文输入改动
            //http://www.cnblogs.com/rubylouvre/archive/2013/02/17/2914604.html
            //http://www.matts411.com/post/internet-explorer-9-oninput/
          }

          break
        case "select":
          binding.bound("change", function () {
            var val = avalon(elem).val() //字符串或字符串数组
            if (Array.isArray(val)) {
              val = val.map(function (v) {
                return binding.pipe(v, binding, "get")
              })
            } else {
              val = binding.pipe(val, binding, "get")
            }
            if (val + "" !== binding.oldValue) {
              try {
                binding.setter(val)
              } catch (ex) {
                log(ex)
              }
            }
          })
          binding.bound("datasetchanged", function (e) {
            if (e.bubble === "selectDuplex") {
              var value = binding._value
              var curValue = Array.isArray(value) ? value.map(String) : value + ""
              avalon(elem).val(curValue)
              elem.oldValue = curValue + ""
              callback.call(elem, curValue)
            }
          })
          break
      }
      if (binding.xtype === "input" && !rnoduplexInput.test(elem.type)) {
        if (elem.type !== "hidden") {
          var beforeFocus
          binding.bound("focus", function () {
            elem.msFocus = true
            beforeFocus = elem.value
          })
          binding.bound("blur", function () {
            elem.msFocus = false
            //IE6-11如果元素绑定了oninput onpropertychange事件会影响onchange事件触发
            if (IEVersion && beforeFocus !== elem.value) {
              beforeFocus = elem.value
              avalon.fireDom(elem, "change")
            }
          })
        }
        elem.avalonSetter = updateVModel //#765
        watchValueInTimer(function () {
          if (root.contains(elem)) {
            if (!elem.msFocus && binding.oldValue !== elem.value) {
              updateVModel()
            }
          } else if (!elem.msRetain) {
            return false
          }
        })
      }

    },
    update: function (value) {
      var elem = this.element, binding = this, curValue
      if (!this.init) {
        for (var i in avalon.vmodels) {
          var v = avalon.vmodels[i]
          v.$fire("avalon-ms-duplex-init", binding)
        }
        var cpipe = binding.pipe || (binding.pipe = pipe)
        cpipe(null, binding, "init")
        this.init = 1
      }
      switch (this.xtype) {
        case "input":
        case "change":
          curValue = this.pipe(value, this, "set")  //fix #673
          if (curValue !== this.oldValue) {
            var fixCaret = false
            if (elem.msFocus) {
              try {
                var start = elem.selectionStart
                var end = elem.selectionEnd
                if (start === end) {
                  var pos = start
                  fixCaret = true
                }
              } catch (e) {
              }
            }
            elem.value = this.oldValue = curValue
            if (fixCaret && !elem.readOnly) {
              elem.selectionStart = elem.selectionEnd = pos
            }
          }
          break
        case "radio":
          curValue = binding.isChecked ? !!value : value + "" === elem.value
          elem.checked = curValue
          break
        case "checkbox":
          var array = [].concat(value) //强制转换为数组
          curValue = this.pipe(elem.value, this, "get")
          elem.checked = array.indexOf(curValue) > -1
          break
        case "select":
          //必须变成字符串后才能比较
          binding._value = value
          if (!elem.msHasEvent) {
            elem.msHasEvent = "selectDuplex"
            //必须等到其孩子准备好才触发
          } else {
            avalon.fireDom(elem, "datasetchanged", {
              bubble: elem.msHasEvent
            })
          }
          break
      }
    }
  })


  function fixNull(val) {
    return val == null ? "" : val
  }

  avalon.duplexHooks = {
    checked: {
      get: function (val, binding) {
        return !binding.oldValue
      }
    },
    string: {
      get: function (val) { //同步到VM
        return val
      },
      set: fixNull
    },
    "boolean": {
      get: function (val) {
        return val === "true"
      },
      set: fixNull
    },
    number: {
      get: function (val, binding) {
        var number = parseFloat(val)
        if (-val === -number) {
          return number
        }
        var arr = /strong|medium|weak/.exec(binding.element.getAttribute("data-duplex-number")) || ["medium"]
        switch (arr[0]) {
          case "strong":
            return 0
          case "medium":
            return val === "" ? "" : 0
          case "weak":
            return val
        }
      },
      set: fixNull
    }
  }

  function pipe(val, binding, action, e) {
    binding.param.replace(rw20g, function (name) {
      var hook = avalon.duplexHooks[name]
      if (hook && typeof hook[action] === "function") {
        val = hook[action](val, binding)
      }
    })
    return val
  }

  var TimerID, ribbon = []

  avalon.tick = function (fn) {
    if (ribbon.push(fn) === 1) {
      TimerID = setInterval(ticker, 60)
    }
  }

  function ticker() {
    for (var n = ribbon.length - 1; n >= 0; n--) {
      var el = ribbon[n]
      if (el() === false) {
        ribbon.splice(n, 1)
      }
    }
    if (!ribbon.length) {
      clearInterval(TimerID)
    }
  }

  var watchValueInTimer = noop
  new function () { // jshint ignore:line
    try { //#272 IE9-IE11, firefox
      var setters = {}
      var aproto = HTMLInputElement.prototype
      var bproto = HTMLTextAreaElement.prototype

      function newSetter(value) { // jshint ignore:line
        setters[this.tagName].call(this, value)
        if (!this.msFocus && this.avalonSetter) {
          this.avalonSetter()
        }
      }

      var inputProto = HTMLInputElement.prototype
      Object.getOwnPropertyNames(inputProto) //故意引发IE6-8等浏览器报错
      setters["INPUT"] = Object.getOwnPropertyDescriptor(aproto, "value").set

      Object.defineProperty(aproto, "value", {
        set: newSetter
      })
      setters["TEXTAREA"] = Object.getOwnPropertyDescriptor(bproto, "value").set
      Object.defineProperty(bproto, "value", {
        set: newSetter
      })
    } catch (e) {
      //在chrome 43中 ms-duplex终于不需要使用定时器实现双向绑定了
      // http://updates.html5rocks.com/2015/04/DOM-attributes-now-on-the-prototype
      // https://docs.google.com/document/d/1jwA8mtClwxI-QJuHT7872Z0pxpZz8PBkf2bGAbsUtqs/edit?pli=1
      watchValueInTimer = avalon.tick
    }
  } // jshint ignore:line

  avalon.directive("effect", {
    priority: 5,
    init: function (binding) {
      var text = binding.expr,
        className,
        rightExpr
      var colonIndex = text.replace(rexprg, function (a) {
        return a.replace(/./g, "0")
      }).indexOf(":") //取得第一个冒号的位置
      if (colonIndex === -1) { // 比如 ms-class/effect="aaa bbb ccc" 的情况
        className = text
        rightExpr = true
      } else { // 比如 ms-class/effect-1="ui-state-active:checked" 的情况
        className = text.slice(0, colonIndex)
        rightExpr = text.slice(colonIndex + 1)
      }
      if (!rexpr.test(text)) {
        className = quote(className)
      } else {
        className = normalizeExpr(className)
      }
      binding.expr = "[" + className + "," + rightExpr + "]"
    },
    update: function (arr) {
      var name = arr[0]
      var elem = this.element
      if (elem.getAttribute("data-effect-name") === name) {
        return
      } else {
        elem.removeAttribute("data-effect-driver")
      }
      var inlineStyles = elem.style
      var computedStyles = window.getComputedStyle ? window.getComputedStyle(elem) : null
      var useAni = false
      if (computedStyles && (supportTransition || supportAnimation)) {

        //如果支持CSS动画
        var duration = inlineStyles[transitionDuration] || computedStyles[transitionDuration]
        if (duration && duration !== '0s') {
          elem.setAttribute("data-effect-driver", "t")
          useAni = true
        }

        if (!useAni) {

          duration = inlineStyles[animationDuration] || computedStyles[animationDuration]
          if (duration && duration !== '0s') {
            elem.setAttribute("data-effect-driver", "a")
            useAni = true
          }

        }
      }

      if (!useAni) {
        if (avalon.effects[name]) {
          elem.setAttribute("data-effect-driver", "j")
          useAni = true
        }
      }
      if (useAni) {
        elem.setAttribute("data-effect-name", name)
      }
    }
  })

  avalon.effects = {}
  avalon.effect = function (name, callbacks) {
    avalon.effects[name] = callbacks
  }


  var supportTransition = false
  var supportAnimation = false

  var transitionEndEvent
  var animationEndEvent
  var transitionDuration = avalon.cssName("transition-duration")
  var animationDuration = avalon.cssName("animation-duration")
  new function () {// jshint ignore:line
    var checker = {
      'TransitionEvent': 'transitionend',
      'WebKitTransitionEvent': 'webkitTransitionEnd',
      'OTransitionEvent': 'oTransitionEnd',
      'otransitionEvent': 'otransitionEnd'
    }
    var tran
    //有的浏览器同时支持私有实现与标准写法，比如webkit支持前两种，Opera支持1、3、4
    for (var name in checker) {
      if (window[name]) {
        tran = checker[name]
        break;
      }
      try {
        var a = document.createEvent(name);
        tran = checker[name]
        break;
      } catch (e) {
      }
    }
    if (typeof tran === "string") {
      supportTransition = true
      transitionEndEvent = tran
    }

    //大致上有两种选择
    //IE10+, Firefox 16+ & Opera 12.1+: animationend
    //Chrome/Safari: webkitAnimationEnd
    //http://blogs.msdn.com/b/davrous/archive/2011/12/06/introduction-to-css3-animat ions.aspx
    //IE10也可以使用MSAnimationEnd监听，但是回调里的事件 type依然为animationend
    //  el.addEventListener("MSAnimationEnd", function(e) {
    //     alert(e.type)// animationend！！！
    // })
    checker = {
      'AnimationEvent': 'animationend',
      'WebKitAnimationEvent': 'webkitAnimationEnd'
    }
    var ani;
    for (name in checker) {
      if (window[name]) {
        ani = checker[name];
        break;
      }
    }
    if (typeof ani === "string") {
      supportTransition = true
      animationEndEvent = ani
    }

  }()

  var effectPool = []//重复利用动画实例
  function effectFactory(el, opts) {
    if (!el || el.nodeType !== 1) {
      return null
    }
    if (opts) {
      var name = opts.effectName
      var driver = opts.effectDriver
    } else {
      name = el.getAttribute("data-effect-name")
      driver = el.getAttribute("data-effect-driver")
    }
    if (!name || !driver) {
      return null
    }

    var instance = effectPool.pop() || new Effect()
    instance.el = el
    instance.driver = driver
    instance.useCss = driver !== "j"
    if (instance.useCss) {
      opts && avalon(el).addClass(opts.effectClass)
      instance.cssEvent = driver === "t" ? transitionEndEvent : animationEndEvent
    }
    instance.name = name
    instance.callbacks = avalon.effects[name] || {}

    return instance


  }

  function effectBinding(elem, binding) {
    var name = elem.getAttribute("data-effect-name")
    if (name) {
      binding.effectName = name
      binding.effectDriver = elem.getAttribute("data-effect-driver")
      var stagger = +elem.getAttribute("data-effect-stagger")
      binding.effectLeaveStagger = +elem.getAttribute("data-effect-leave-stagger") || stagger
      binding.effectEnterStagger = +elem.getAttribute("data-effect-enter-stagger") || stagger
      binding.effectClass = elem.className || NaN
    }
  }

  function upperFirstChar(str) {
    return str.replace(/^[\S]/g, function (m) {
      return m.toUpperCase()
    })
  }

  var effectBuffer = new Buffer()

  function Effect() {
  }// 动画实例,做成类的形式,是为了共用所有原型方法

  Effect.prototype = {
    contrustor: Effect,
    enterClass: function () {
      return getEffectClass(this, "enter")
    },
    leaveClass: function () {
      return getEffectClass(this, "leave")
    },
    // 共享一个函数
    actionFun: function (name, before, after) {
      if (document.hidden) {
        return
      }
      var me = this
      var el = me.el
      var isLeave = name === "leave"
      name = isLeave ? "leave" : "enter"
      var oppositeName = isLeave ? "enter" : "leave"
      callEffectHook(me, "abort" + upperFirstChar(oppositeName))
      callEffectHook(me, "before" + upperFirstChar(name))
      if (!isLeave)
        before(el) //  这里可能做插入DOM树的操作,因此必须在修改类名前执行
      var cssCallback = function (cancel) {
        el.removeEventListener(me.cssEvent, me.cssCallback)
        if (isLeave) {
          before(el) //这里可能做移出DOM树操作,因此必须位于动画之后
          avalon(el).removeClass(me.cssClass)
        } else {
          if (me.driver === "a") {
            avalon(el).removeClass(me.cssClass)
          }
        }
        if (cancel !== true) {
          callEffectHook(me, "after" + upperFirstChar(name))
          after && after(el)
        }
        me.dispose()
      }
      if (me.useCss) {
        if (me.cssCallback) { //如果leave动画还没有完成,立即完成
          me.cssCallback(true)
        }

        me.cssClass = getEffectClass(me, name)
        me.cssCallback = cssCallback

        me.update = function () {
          el.addEventListener(me.cssEvent, me.cssCallback)
          if (!isLeave && me.driver === "t") {//transtion延迟触发
            avalon(el).removeClass(me.cssClass)
          }
        }
        avalon(el).addClass(me.cssClass)//animation会立即触发

        effectBuffer.render(true)
        effectBuffer.queue.push(me)

      } else {
        callEffectHook(me, name, cssCallback)

      }
    },
    enter: function (before, after) {
      this.actionFun.apply(this, ["enter"].concat(avalon.slice(arguments)))

    },
    leave: function (before, after) {
      this.actionFun.apply(this, ["leave"].concat(avalon.slice(arguments)))

    },
    dispose: function () {//销毁与回收到池子中
      this.update = this.cssCallback = null
      if (effectPool.unshift(this) > 100) {
        effectPool.pop()
      }
    }


  }


  function getEffectClass(instance, type) {
    var a = instance.callbacks[type + "Class"]
    if (typeof a === "string")
      return a
    if (typeof a === "function")
      return a()
    return instance.name + "-" + type
  }


  function callEffectHook(effect, name, cb) {
    var hook = effect.callbacks[name]
    if (hook) {
      hook.call(effect, effect.el, cb)
    }
  }

  var applyEffect = function (el, dir/*[before, [after, [opts]]]*/) {
    var args = aslice.call(arguments, 0)
    if (typeof args[2] !== "function") {
      args.splice(2, 0, noop)
    }
    if (typeof args[3] !== "function") {
      args.splice(3, 0, noop)
    }
    var before = args[2]
    var after = args[3]
    var opts = args[4]
    var effect = effectFactory(el, opts)
    if (!effect) {
      before()
      after()
      return false
    } else {
      var method = dir ? 'enter' : 'leave'
      effect[method](before, after)
    }
  }

  avalon.mix(avalon.effect, {
    apply: applyEffect,
    append: function (el, parent, after, opts) {
      return applyEffect(el, 1, function () {
        parent.appendChild(el)
      }, after, opts)
    },
    before: function (el, target, after, opts) {
      return applyEffect(el, 1, function () {
        target.parentNode.insertBefore(el, target)
      }, after, opts)
    },
    remove: function (el, parent, after, opts) {
      return applyEffect(el, 0, function () {
        if (el.parentNode === parent)
          parent.removeChild(el)
      }, after, opts)
    }
  })


  avalon.directive("html", {
    update: function (val) {
      var binding = this
      var elem = this.element
      var isHtmlFilter = elem.nodeType !== 1
      var parent = isHtmlFilter ? elem.parentNode : elem
      if (!parent)
        return
      val = val == null ? "" : val

      if (elem.nodeType === 3) {
        var signature = generateID("html")
        parent.insertBefore(DOC.createComment(signature), elem)
        binding.element = DOC.createComment(signature + ":end")
        parent.replaceChild(binding.element, elem)
        elem = binding.element
      }
      if (typeof val !== "object") {//string, number, boolean
        var fragment = avalon.parseHTML(String(val))
      } else if (val.nodeType === 11) { //将val转换为文档碎片
        fragment = val
      } else if (val.nodeType === 1 || val.item) {
        var nodes = val.nodeType === 1 ? val.childNodes : val.item
        fragment = avalonFragment.cloneNode(true)
        while (nodes[0]) {
          fragment.appendChild(nodes[0])
        }
      }

      nodes = avalon.slice(fragment.childNodes)
      //插入占位符, 如果是过滤器,需要有节制地移除指定的数量,如果是html指令,直接清空
      if (isHtmlFilter) {
        var endValue = elem.nodeValue.slice(0, -4)
        while (true) {
          var node = elem.previousSibling
          if (!node || node.nodeType === 8 && node.nodeValue === endValue) {
            break
          } else {
            parent.removeChild(node)
          }
        }
        parent.insertBefore(fragment, elem)
      } else {
        avalon.clearHTML(elem).appendChild(fragment)
      }
      scanNodeArray(nodes, binding.vmodels)
    }
  })

  avalon.directive("if", {
    priority: 10,
    update: function (val) {
      var binding = this
      var elem = this.element
      var stamp = binding.stamp = +new Date()
      var par
      var after = function () {
        if (stamp !== binding.stamp)
          return
        binding.recoverNode = null
      }
      if (binding.recoverNode)
        binding.recoverNode() // 还原现场，有移动节点的都需要还原现场
      try {
        if (!elem.parentNode)
          return
        par = elem.parentNode
      } catch (e) {
        return
      }
      if (val) { //插回DOM树
        function alway() {// jshint ignore:line
          if (elem.getAttribute(binding.name)) {
            elem.removeAttribute(binding.name)
            scanAttr(elem, binding.vmodels)
          }
          binding.rollback = null
        }

        if (elem.nodeType === 8) {
          var keep = binding.keep
          var hasEffect = avalon.effect.apply(keep, 1, function () {
            if (stamp !== binding.stamp)
              return
            elem.parentNode.replaceChild(keep, elem)
            elem = binding.element = keep //这时可能为null
            if (keep.getAttribute("_required")) {//#1044
              elem.required = true
              elem.removeAttribute("_required")
            }
            if (elem.querySelectorAll) {
              avalon.each(elem.querySelectorAll("[_required=true]"), function (el) {
                el.required = true
                el.removeAttribute("_required")
              })
            }
            alway()
          }, after)
          hasEffect = hasEffect === false
        }
        if (!hasEffect)
          alway()
      } else { //移出DOM树，并用注释节点占据原位置
        if (elem.nodeType === 1) {
          if (elem.required === true) {
            elem.required = false
            elem.setAttribute("_required", "true")
          }
          try {// 如果不支持querySelectorAll或:required,可以直接无视
            avalon.each(elem.querySelectorAll(":required"), function (el) {
              elem.required = false
              el.setAttribute("_required", "true")
            })
          } catch (e) {
          }

          var node = binding.element = DOC.createComment("ms-if"),
            pos = elem.nextSibling
          binding.recoverNode = function () {
            binding.recoverNode = null
            if (node.parentNode !== par) {
              par.insertBefore(node, pos)
              binding.keep = elem
            }
          }

          avalon.effect.apply(elem, 0, function () {
            binding.recoverNode = null
            if (stamp !== binding.stamp)
              return
            elem.parentNode.replaceChild(node, elem)
            binding.keep = elem //元素节点
            ifGroup.appendChild(elem)
            binding.rollback = function () {
              if (elem.parentNode === ifGroup) {
                ifGroup.removeChild(elem)
              }
            }
          }, after)
        }
      }
    }
  })


//ms-important绑定已经在scanTag 方法中实现
  var rnoscripts = /<noscript.*?>(?:[\s\S]+?)<\/noscript>/img
  var rnoscriptText = /<noscript.*?>([\s\S]+?)<\/noscript>/im

  var getXHR = function () {
    return new window.XMLHttpRequest() // jshint ignore:line
  }
//将所有远程加载的模板,以字符串形式存放到这里
  var templatePool = avalon.templateCache = {}

  function getTemplateContainer(binding, id, text) {
    var div = binding.templateCache && binding.templateCache[id]
    if (div) {
      var dom = DOC.createDocumentFragment(),
        firstChild
      while (firstChild = div.firstChild) {
        dom.appendChild(firstChild)
      }
      return dom
    }
    return avalon.parseHTML(text)

  }

  function nodesToFrag(nodes) {
    var frag = DOC.createDocumentFragment()
    for (var i = 0, len = nodes.length; i < len; i++) {
      frag.appendChild(nodes[i])
    }
    return frag
  }

  avalon.directive("include", {
    init: directives.attr.init,
    update: function (val) {
      var binding = this
      var elem = this.element
      var vmodels = binding.vmodels
      var rendered = binding.includeRendered
      var effectClass = binding.effectName && binding.effectClass // 是否开启动画
      var templateCache = binding.templateCache // 是否data-include-cache
      var outer = binding.includeReplace // 是否data-include-replace
      var loaded = binding.includeLoaded
      var target = outer ? elem.parentNode : elem
      var _ele = binding._element // data-include-replace binding.element === binding.end

      binding.recoverNodes = binding.recoverNodes || avalon.noop

      var scanTemplate = function (text) {
        var _stamp = binding._stamp = +(new Date()) // 过滤掉频繁操作
        if (loaded) {
          var newText = loaded.apply(target, [text].concat(vmodels))
          if (typeof newText === "string")
            text = newText
        }
        if (rendered) {
          checkScan(target, function () {
            rendered.call(target)
          }, NaN)
        }
        var lastID = binding.includeLastID || "_default" // 默认

        binding.includeLastID = val
        var leaveEl = templateCache && templateCache[lastID] || DOC.createElement(elem.tagName || binding._element.tagName) // 创建一个离场元素

        if (effectClass) {
          leaveEl.className = effectClass
          target.insertBefore(leaveEl, binding.start) // 插入到start之前，防止被错误的移动
        }

        // cache or animate，移动节点
        (templateCache || {})[lastID] = leaveEl
        var fragOnDom = binding.recoverNodes() // 恢复动画中的节点
        if (fragOnDom) {
          target.insertBefore(fragOnDom, binding.end)
        }
        while (true) {
          var node = binding.start.nextSibling
          if (node && node !== leaveEl && node !== binding.end) {
            leaveEl.appendChild(node)
          } else {
            break
          }
        }

        // 元素退场
        avalon.effect.remove(leaveEl, target, function () {
          if (templateCache) { // write cache
            if (_stamp === binding._stamp)
              ifGroup.appendChild(leaveEl)
          }
        }, binding)


        var enterEl = target,
          before = avalon.noop,
          after = avalon.noop

        var fragment = getTemplateContainer(binding, val, text)
        var nodes = avalon.slice(fragment.childNodes)

        if (outer && effectClass) {
          enterEl = _ele
          enterEl.innerHTML = "" // 清空
          enterEl.setAttribute("ms-skip", "true")
          target.insertBefore(enterEl, binding.end.nextSibling) // 插入到bingding.end之后避免被错误的移动
          before = function () {
            enterEl.insertBefore(fragment, null) // 插入节点
          }
          after = function () {
            binding.recoverNodes = avalon.noop
            if (_stamp === binding._stamp) {
              fragment = nodesToFrag(nodes)
              target.insertBefore(fragment, binding.end) // 插入真实element
              scanNodeArray(nodes, vmodels)
            }
            if (enterEl.parentNode === target)
              target.removeChild(enterEl) // 移除入场动画元素
          }
          binding.recoverNodes = function () {
            binding.recoverNodes = avalon.noop
            return nodesToFrag(nodes)
          }
        } else {
          before = function () {// 新添加元素的动画
            target.insertBefore(fragment, binding.end)
            scanNodeArray(nodes, vmodels)
          }
        }

        avalon.effect.apply(enterEl, "enter", before, after)

      }


      if (binding.param === "src") {
        if (typeof templatePool[val] === "string") {
          avalon.nextTick(function () {
            scanTemplate(templatePool[val])
          })
        } else if (Array.isArray(templatePool[val])) { //#805 防止在循环绑定中发出许多相同的请求
          templatePool[val].push(scanTemplate)
        } else {
          var xhr = getXHR()
          xhr.onload = function () {
            var text = xhr.responseText
            for (var f = 0, fn; fn = templatePool[val][f++];) {
              fn(text)
            }
            templatePool[val] = text
          }
          xhr.onerror = function () {
            log("ms-include load [" + val + "] error")
          }
          templatePool[val] = [scanTemplate]
          xhr.open("GET", val, true)
          if ("withCredentials" in xhr) {
            xhr.withCredentials = true
          }
          xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")
          xhr.send(null)
        }
      } else {
        //IE系列与够新的标准浏览器支持通过ID取得元素（firefox14+）
        //http://tjvantoll.com/2012/07/19/dom-element-references-as-global-variables/
        var el = val && val.nodeType === 1 ? val : DOC.getElementById(val)
        if (el) {
          avalon.nextTick(function () {
            scanTemplate(el.value || el.innerText || el.innerHTML)
          })
        }
      }
    }
  })

  var rdash = /\(([^)]*)\)/
  var onDir = avalon.directive("on", {
    priority: 3000,
    init: function (binding) {
      var value = binding.expr
      binding.type = "on"
      var eventType = binding.param.replace(/-\d+$/, "") // ms-on-mousemove-10
      if (typeof onDir[eventType + "Hook"] === "function") {
        onDir[eventType + "Hook"](binding)
      }
      if (value.indexOf("(") > 0 && value.indexOf(")") > -1) {
        var matched = (value.match(rdash) || ["", ""])[1].trim()
        if (matched === "" || matched === "$event") { // aaa() aaa($event)当成aaa处理
          value = value.replace(rdash, "")
        }
      }
      binding.expr = value
    },
    update: function (callback) {
      var binding = this
      var elem = this.element
      callback = function (e) {
        var fn = binding.getter || noop
        return fn.apply(this, binding.args.concat(e))
      }

      var eventType = binding.param.replace(/-\d+$/, "") // ms-on-mousemove-10
      if (eventType === "scan") {
        callback.call(elem, {
          type: eventType
        })
      } else if (typeof binding.specialBind === "function") {
        binding.specialBind(elem, callback)
      } else {
        var removeFn = avalon.bind(elem, eventType, callback)
      }
      binding.rollback = function () {
        if (typeof binding.specialUnbind === "function") {
          binding.specialUnbind()
        } else {
          avalon.unbind(elem, eventType, removeFn)
        }
      }
    }
  })
  avalon.directive("repeat", {
    priority: 90,
    init: function (binding) {
      var type = binding.type
      binding.cache = {} //用于存放代理VM
      binding.enterCount = 0

      var elem = binding.element
      if (elem.nodeType === 1) {
        elem.removeAttribute(binding.name)
        effectBinding(elem, binding)
        binding.param = binding.param || "el"
        binding.sortedCallback = getBindingCallback(elem, "data-with-sorted", binding.vmodels)
        var rendered = getBindingCallback(elem, "data-" + type + "-rendered", binding.vmodels)

        var signature = generateID(type)
        var start = DOC.createComment(signature + ":start")
        var end = binding.element = DOC.createComment(signature + ":end")
        binding.signature = signature
        binding.start = start
        binding.template = avalonFragment.cloneNode(false)
        if (type === "repeat") {
          var parent = elem.parentNode
          parent.replaceChild(end, elem)
          parent.insertBefore(start, end)
          binding.template.appendChild(elem)
        } else {
          while (elem.firstChild) {
            binding.template.appendChild(elem.firstChild)
          }
          elem.appendChild(start)
          elem.appendChild(end)
          parent = elem
        }
        binding.element = end

        if (rendered) {
          var removeFn = avalon.bind(parent, "datasetchanged", function () {
            rendered.apply(parent, parent.args)
            avalon.unbind(parent, "datasetchanged", removeFn)
            parent.msRendered = rendered
          })
        }
      }
    },
    update: function (value, oldValue) {
      var binding = this
      var xtype = this.xtype

      this.enterCount += 1
      var init = !oldValue
      if (init) {
        binding.$outer = {}
        var check0 = "$key"
        var check1 = "$val"
        if (xtype === "array") {
          check0 = "$first"
          check1 = "$last"
        }
        for (var i = 0, v; v = binding.vmodels[i++];) {
          if (v.hasOwnProperty(check0) && v.hasOwnProperty(check1)) {
            binding.$outer = v
            break
          }
        }
      }
      var track = this.track
      if (binding.sortedCallback) { //如果有回调，则让它们排序
        var keys2 = binding.sortedCallback.call(parent, track)
        if (keys2 && Array.isArray(keys2)) {
          track = keys2
        }
      }

      var action = "move"
      binding.$repeat = value
      var fragments = []
      var transation = init && avalonFragment.cloneNode(false)
      var proxies = []
      var param = this.param
      var retain = avalon.mix({}, this.cache)
      var elem = this.element
      var length = track.length

      var parent = elem.parentNode
      for (i = 0; i < length; i++) {

        var keyOrId = track[i] //array为随机数, object 为keyName
        var proxy = retain[keyOrId]
        if (!proxy) {

          proxy = getProxyVM(this)
          proxy.$up = null
          if (xtype === "array") {
            action = "add"
            proxy.$id = keyOrId
            var valueItem = value[i]
            proxy[param] = valueItem //index
            if (Object(valueItem) === valueItem) {
              valueItem.$ups = valueItem.$ups || {}
              valueItem.$ups[param] = proxy
            }

          } else {
            action = "append"
            proxy.$key = keyOrId
            proxy.$val = value[keyOrId] //key
          }
          this.cache[keyOrId] = proxy
          var node = proxy.$anchor || (proxy.$anchor = elem.cloneNode(false))
          node.nodeValue = this.signature
          shimController(binding, transation, proxy, fragments, init && !binding.effectDriver)
          decorateProxy(proxy, binding, xtype)
        } else {
//                if (xtype === "array") {
//                    proxy[param] = value[i]
//                }
          fragments.push({})
          retain[keyOrId] = true
        }

        //重写proxy
        if (this.enterCount === 1) {// 防止多次进入,导致位置不对
          proxy.$active = false
          proxy.$oldIndex = proxy.$index
          proxy.$active = true
          proxy.$index = i

        }

        if (xtype === "array") {
          proxy.$first = i === 0
          proxy.$last = i === length - 1
          // proxy[param] = value[i]
        } else {
          proxy.$val = toJson(value[keyOrId]) // 这里是处理vm.object = newObject的情况
        }
        proxies.push(proxy)
      }
      this.proxies = proxies
      if (init && !binding.effectDriver) {
        parent.insertBefore(transation, elem)
        fragments.forEach(function (fragment) {
          scanNodeArray(fragment.nodes || [], fragment.vmodels)
          //if(fragment.vmodels.length > 2)
          fragment.nodes = fragment.vmodels = null
        })// jshint ignore:line
      } else {

        var staggerIndex = binding.staggerIndex = 0
        for (keyOrId in retain) {
          if (retain[keyOrId] !== true) {

            action = "del"
            removeItem(retain[keyOrId].$anchor, binding)
            // avalon.log("删除", keyOrId)
            // 相当于delete binding.cache[key]
            proxyRecycler(this.cache, keyOrId, param)
            retain[keyOrId] = null
          }
        }

        //  console.log(effectEnterStagger)
        for (i = 0; i < length; i++) {
          proxy = proxies[i]
          keyOrId = xtype === "array" ? proxy.$id : proxy.$key
          var pre = proxies[i - 1]
          var preEl = pre ? pre.$anchor : binding.start
          if (!retain[keyOrId]) {//如果还没有插入到DOM树
            (function (fragment, preElement) {
              var nodes = fragment.nodes
              var vmodels = fragment.vmodels
              if (nodes) {
                staggerIndex = mayStaggerAnimate(binding.effectEnterStagger, function () {
                  parent.insertBefore(fragment.content, preElement.nextSibling)
                  scanNodeArray(nodes, vmodels)
                  animateRepeat(nodes, 1, binding)
                }, staggerIndex)
              }
              fragment.nodes = fragment.vmodels = null
            })(fragments[i], preEl)// jshint ignore:line
            // avalon.log("插入")

          } else if (proxy.$index !== proxy.$oldIndex) {
            (function (proxy2, preElement) {
              staggerIndex = mayStaggerAnimate(binding.effectEnterStagger, function () {
                var curNode = removeItem(proxy2.$anchor)// 如果位置被挪动了
                var inserted = avalon.slice(curNode.childNodes)
                parent.insertBefore(curNode, preElement.nextSibling)
                animateRepeat(inserted, 1, binding)
              }, staggerIndex)
            })(proxy, preEl)// jshint ignore:line

            // avalon.log("移动", proxy.$oldIndex, "-->", proxy.$index)
          }
        }

      }
      if (!value.$track) {//如果是非监控对象,那么就将其$events清空,阻止其持续监听
        for (keyOrId in this.cache) {
          proxyRecycler(this.cache, keyOrId, param)
        }

      }

      //repeat --> duplex
      (function (args) {
        parent.args = args
        if (parent.msRendered) {//第一次事件触发,以后直接调用
          parent.msRendered.apply(parent, args)
        }
      })(kernel.newWatch ? arguments : [action]);
      var id = setTimeout(function () {
        clearTimeout(id)
        //触发上层的select回调及自己的rendered回调
        avalon.fireDom(parent, "datasetchanged", {
          bubble: parent.msHasEvent
        })
      })
      this.enterCount -= 1

    }

  })

  "with,each".replace(rword, function (name) {
    directives[name] = avalon.mix({}, directives.repeat, {
      priority: 1400
    })
  })


  function animateRepeat(nodes, isEnter, binding) {
    for (var i = 0, node; node = nodes[i++];) {
      if (node.className === binding.effectClass) {
        avalon.effect.apply(node, isEnter, noop, noop, binding)
      }
    }
  }

  function mayStaggerAnimate(staggerTime, callback, index) {
    if (staggerTime) {
      setTimeout(callback, (++index) * staggerTime)
    } else {
      callback()
    }
    return index
  }


  function removeItem(node, binding) {
    var fragment = avalonFragment.cloneNode(false)
    var last = node
    var breakText = last.nodeValue
    var staggerIndex = binding && Math.max(+binding.staggerIndex, 0)
    var nodes = avalon.slice(last.parentNode.childNodes)
    var index = nodes.indexOf(last)
    while (true) {
      var pre = nodes[--index] //node.previousSibling
      if (!pre || String(pre.nodeValue).indexOf(breakText) === 0) {
        break
      }

      if (binding && (pre.className === binding.effectClass)) {
        node = pre;
        (function (cur) {
          binding.staggerIndex = mayStaggerAnimate(binding.effectLeaveStagger, function () {
            avalon.effect.apply(cur, 0, noop, function () {
              fragment.appendChild(cur)
            }, binding)
          }, staggerIndex)
        })(pre);// jshint ignore:line
      } else {
        fragment.insertBefore(pre, fragment.firstChild)
      }
    }
    fragment.appendChild(last)
    return fragment
  }


  function shimController(data, transation, proxy, fragments, init) {
    var content = data.template.cloneNode(true)
    var nodes = avalon.slice(content.childNodes)
    content.appendChild(proxy.$anchor)
    init && transation.appendChild(content)
    var nv = [proxy].concat(data.vmodels)
    var fragment = {
      nodes: nodes,
      vmodels: nv,
      content: content
    }
    fragments.push(fragment)
  }

// {}  -->  {xx: 0, yy: 1, zz: 2} add
// {xx: 0, yy: 1, zz: 2}  -->  {xx: 0, yy: 1, zz: 2, uu: 3}
// [xx: 0, yy: 1, zz: 2}  -->  {xx: 0, zz: 1, yy: 2}

  function getProxyVM(binding) {
    var agent = binding.xtype === "object" ? withProxyAgent : eachProxyAgent
    var proxy = agent(binding)
    var node = proxy.$anchor || (proxy.$anchor = binding.element.cloneNode(false))
    node.nodeValue = binding.signature
    proxy.$outer = binding.$outer
    return proxy
  }

  var eachProxyPool = []

  function eachProxyAgent(data, proxy) {
    var itemName = data.param || "el"
    for (var i = 0, n = eachProxyPool.length; i < n; i++) {
      var candidate = eachProxyPool[i]
      if (candidate && candidate.hasOwnProperty(itemName)) {
        eachProxyPool.splice(i, 1)
        proxy = candidate
        break
      }
    }
    if (!proxy) {
      proxy = eachProxyFactory(itemName)
    }
    return proxy
  }

  function eachProxyFactory(itemName) {
    var source = {
      $outer: {},
      $index: 0,
      $oldIndex: 0,
      $anchor: null,
      //-----
      $first: false,
      $last: false,
      $remove: avalon.noop
    }
    source[itemName] = NaN

    var force = {
      $last: 1,
      $first: 1,
      $index: 1
    }
    force[itemName] = 1
    var proxy = modelFactory(source, {
      force: force
    })
    proxy.$id = generateID("$proxy$each")
    return proxy
  }

  function decorateProxy(proxy, binding, type) {
    if (type === "array") {
      proxy.$remove = function () {

        binding.$repeat.removeAt(proxy.$index)
      }
      var param = binding.param


      proxy.$watch(param, function (a) {
        var index = proxy.$index
        binding.$repeat[index] = a
      })
    } else {
      proxy.$watch("$val", function fn(a) {
        binding.$repeat[proxy.$key] = a
      })
    }
  }

  var withProxyPool = []

  function withProxyAgent() {
    return withProxyPool.pop() || withProxyFactory()
  }

  function withProxyFactory() {
    var proxy = modelFactory({
      $key: "",
      $val: NaN,
      $index: 0,
      $oldIndex: 0,
      $outer: {},
      $anchor: null
    }, {
      force: {
        $key: 1,
        $val: 1,
        $index: 1
      }
    })
    proxy.$id = generateID("$proxy$with")
    return proxy
  }


  function proxyRecycler(cache, key, param) {
    var proxy = cache[key]
    if (proxy) {
      var proxyPool = proxy.$id.indexOf("$proxy$each") === 0 ? eachProxyPool : withProxyPool
      proxy.$outer = {}

      for (var i in proxy.$events) {
        var a = proxy.$events[i]
        if (Array.isArray(a)) {
          a.length = 0
          if (i === param) {
            proxy[param] = NaN

          } else if (i === "$val") {
            proxy.$val = NaN
          }
        }
      }

      if (proxyPool.unshift(proxy) > kernel.maxRepeatSize) {
        proxyPool.pop()
      }
      delete cache[key]
    }
  }

  /*********************************************************************
   *                         各种指令                                  *
   **********************************************************************/
//ms-skip绑定已经在scanTag 方法中实现
  avalon.directive("text", {
    update: function (val) {
      var elem = this.element
      val = val == null ? "" : val //不在页面上显示undefined null
      if (elem.nodeType === 3) { //绑定在文本节点上
        try { //IE对游离于DOM树外的节点赋值会报错
          elem.data = val
        } catch (e) {
        }
      } else { //绑定在特性节点上
        elem.textContent = val
      }
    }
  })

  function parseDisplay(nodeName, val) {
    //用于取得此类标签的默认display值
    var key = "_" + nodeName
    if (!parseDisplay[key]) {
      var node = DOC.createElement(nodeName)
      root.appendChild(node)
      if (W3C) {
        val = getComputedStyle(node, null).display
      } else {
        val = node.currentStyle.display
      }
      root.removeChild(node)
      parseDisplay[key] = val
    }
    return parseDisplay[key]
  }

  avalon.parseDisplay = parseDisplay

  avalon.directive("visible", {
    init: function (binding) {
      effectBinding(binding.element, binding)
    },
    update: function (val) {
      var binding = this, elem = this.element, stamp
      var noEffect = !this.effectName
      if (!this.stamp) {
        stamp = this.stamp = +new Date
        if (val) {
          elem.style.display = binding.display || ""
          if (avalon(elem).css("display") === "none") {
            elem.style.display = binding.display = parseDisplay(elem.nodeName)
          }
        } else {
          elem.style.display = "none"
        }
        return
      }
      stamp = this.stamp = +new Date
      if (val) {
        avalon.effect.apply(elem, 1, function () {
          if (stamp !== binding.stamp)
            return
          var driver = elem.getAttribute("data-effect-driver") || "a"

          if (noEffect) {//不用动画时走这里
            elem.style.display = binding.display || ""
          }
          // "a", "t"
          if (driver === "a" || driver === "t") {
            if (avalon(elem).css("display") === "none") {
              elem.style.display = binding.display || parseDisplay(elem.nodeName)
            }
          }
        })
      } else {
        avalon.effect.apply(elem, 0, function () {
          if (stamp !== binding.stamp)
            return
          elem.style.display = "none"
        })
      }
    }
  })

  /*********************************************************************
   *                             自带过滤器                            *
   **********************************************************************/
  var rscripts = /<script[^>]*>([\S\s]*?)<\/script\s*>/gim
  var ron = /\s+(on[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g
  var ropen = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/ig
  var rsanitize = {
    a: /\b(href)\=("javascript[^"]*"|'javascript[^']*')/ig,
    img: /\b(src)\=("javascript[^"]*"|'javascript[^']*')/ig,
    form: /\b(action)\=("javascript[^"]*"|'javascript[^']*')/ig
  }
  var rsurrogate = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g
  var rnoalphanumeric = /([^\#-~| |!])/g;

  function numberFormat(number, decimals, point, thousands) {
    //form http://phpjs.org/functions/number_format/
    //number	必需，要格式化的数字
    //decimals	可选，规定多少个小数位。
    //point	可选，规定用作小数点的字符串（默认为 . ）。
    //thousands	可选，规定用作千位分隔符的字符串（默认为 , ），如果设置了该参数，那么所有其他参数都是必需的。
    number = (number + '')
      .replace(/[^0-9+\-Ee.]/g, '')
    var n = !isFinite(+number) ? 0 : +number,
      prec = !isFinite(+decimals) ? 3 : Math.abs(decimals),
      sep = thousands || ",",
      dec = point || ".",
      s = '',
      toFixedFix = function (n, prec) {
        var k = Math.pow(10, prec)
        return '' + (Math.round(n * k) / k)
          .toFixed(prec)
      }
    // Fix for IE parseFloat(0.55).toFixed(0) = 0;
    s = (prec ? toFixedFix(n, prec) : '' + Math.round(n))
      .split('.')
    if (s[0].length > 3) {
      s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep)
    }
    if ((s[1] || '')
      .length < prec) {
      s[1] = s[1] || ''
      s[1] += new Array(prec - s[1].length + 1)
        .join('0')
    }
    return s.join(dec)
  }


  var filters = avalon.filters = {
    uppercase: function (str) {
      return str.toUpperCase()
    },
    lowercase: function (str) {
      return str.toLowerCase()
    },
    truncate: function (str, length, truncation) {
      //length，新字符串长度，truncation，新字符串的结尾的字段,返回新字符串
      length = length || 30
      truncation = typeof truncation === "string" ? truncation : "..."
      return str.length > length ? str.slice(0, length - truncation.length) + truncation : String(str)
    },
    $filter: function (val) {
      for (var i = 1, n = arguments.length; i < n; i++) {
        var array = arguments[i]
        var fn = avalon.filters[array[0]]
        if (typeof fn === "function") {
          var arr = [val].concat(array.slice(1))
          val = fn.apply(null, arr)
        }
      }
      return val
    },
    camelize: camelize,
    //https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
    //    <a href="javasc&NewLine;ript&colon;alert('XSS')">chrome</a>
    //    <a href="data:text/html;base64, PGltZyBzcmM9eCBvbmVycm9yPWFsZXJ0KDEpPg==">chrome</a>
    //    <a href="jav	ascript:alert('XSS');">IE67chrome</a>
    //    <a href="jav&#x09;ascript:alert('XSS');">IE67chrome</a>
    //    <a href="jav&#x0A;ascript:alert('XSS');">IE67chrome</a>
    sanitize: function (str) {
      return str.replace(rscripts, "").replace(ropen, function (a, b) {
        var match = a.toLowerCase().match(/<(\w+)\s/)
        if (match) { //处理a标签的href属性，img标签的src属性，form标签的action属性
          var reg = rsanitize[match[1]]
          if (reg) {
            a = a.replace(reg, function (s, name, value) {
              var quote = value.charAt(0)
              return name + "=" + quote + "javascript:void(0)" + quote// jshint ignore:line
            })
          }
        }
        return a.replace(ron, " ").replace(/\s+/g, " ") //移除onXXX事件
      })
    },
    escape: function (str) {
      //将字符串经过 str 转义得到适合在页面中显示的内容, 例如替换 < 为 &lt
      return String(str).replace(/&/g, '&amp;').replace(rsurrogate, function (value) {
        var hi = value.charCodeAt(0)
        var low = value.charCodeAt(1)
        return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';'
      }).replace(rnoalphanumeric, function (value) {
        return '&#' + value.charCodeAt(0) + ';'
      }).replace(/</g, '&lt;').replace(/>/g, '&gt;')
    },
    currency: function (amount, symbol, fractionSize) {
      return (symbol || "\uFFE5") + numberFormat(amount, isFinite(fractionSize) ? fractionSize : 2)
    },
    number: numberFormat
  }
  /*
 'yyyy': 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)
 'yy': 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)
 'y': 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)
 'MMMM': Month in year (January-December)
 'MMM': Month in year (Jan-Dec)
 'MM': Month in year, padded (01-12)
 'M': Month in year (1-12)
 'dd': Day in month, padded (01-31)
 'd': Day in month (1-31)
 'EEEE': Day in Week,(Sunday-Saturday)
 'EEE': Day in Week, (Sun-Sat)
 'HH': Hour in day, padded (00-23)
 'H': Hour in day (0-23)
 'hh': Hour in am/pm, padded (01-12)
 'h': Hour in am/pm, (1-12)
 'mm': Minute in hour, padded (00-59)
 'm': Minute in hour (0-59)
 'ss': Second in minute, padded (00-59)
 's': Second in minute (0-59)
 'a': am/pm marker
 'Z': 4 digit (+sign) representation of the timezone offset (-1200-+1200)
 format string can also be one of the following predefined localizable formats:

 'medium': equivalent to 'MMM d, y h:mm:ss a' for en_US locale (e.g. Sep 3, 2010 12:05:08 pm)
 'short': equivalent to 'M/d/yy h:mm a' for en_US locale (e.g. 9/3/10 12:05 pm)
 'fullDate': equivalent to 'EEEE, MMMM d,y' for en_US locale (e.g. Friday, September 3, 2010)
 'longDate': equivalent to 'MMMM d, y' for en_US locale (e.g. September 3, 2010
 'mediumDate': equivalent to 'MMM d, y' for en_US locale (e.g. Sep 3, 2010)
 'shortDate': equivalent to 'M/d/yy' for en_US locale (e.g. 9/3/10)
 'mediumTime': equivalent to 'h:mm:ss a' for en_US locale (e.g. 12:05:08 pm)
 'shortTime': equivalent to 'h:mm a' for en_US locale (e.g. 12:05 pm)
 */
  new function () {// jshint ignore:line
    function toInt(str) {
      return parseInt(str, 10) || 0
    }

    function padNumber(num, digits, trim) {
      var neg = ""
      if (num < 0) {
        neg = '-'
        num = -num
      }
      num = "" + num
      while (num.length < digits)
        num = "0" + num
      if (trim)
        num = num.substr(num.length - digits)
      return neg + num
    }

    function dateGetter(name, size, offset, trim) {
      return function (date) {
        var value = date["get" + name]()
        if (offset > 0 || value > -offset)
          value += offset
        if (value === 0 && offset === -12) {
          value = 12
        }
        return padNumber(value, size, trim)
      }
    }

    function dateStrGetter(name, shortForm) {
      return function (date, formats) {
        var value = date["get" + name]()
        var get = (shortForm ? ("SHORT" + name) : name).toUpperCase()
        return formats[get][value]
      }
    }

    function timeZoneGetter(date) {
      var zone = -1 * date.getTimezoneOffset()
      var paddedZone = (zone >= 0) ? "+" : ""
      paddedZone += padNumber(Math[zone > 0 ? "floor" : "ceil"](zone / 60), 2) + padNumber(Math.abs(zone % 60), 2)
      return paddedZone
    }

    //取得上午下午

    function ampmGetter(date, formats) {
      return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1]
    }

    var DATE_FORMATS = {
      yyyy: dateGetter("FullYear", 4),
      yy: dateGetter("FullYear", 2, 0, true),
      y: dateGetter("FullYear", 1),
      MMMM: dateStrGetter("Month"),
      MMM: dateStrGetter("Month", true),
      MM: dateGetter("Month", 2, 1),
      M: dateGetter("Month", 1, 1),
      dd: dateGetter("Date", 2),
      d: dateGetter("Date", 1),
      HH: dateGetter("Hours", 2),
      H: dateGetter("Hours", 1),
      hh: dateGetter("Hours", 2, -12),
      h: dateGetter("Hours", 1, -12),
      mm: dateGetter("Minutes", 2),
      m: dateGetter("Minutes", 1),
      ss: dateGetter("Seconds", 2),
      s: dateGetter("Seconds", 1),
      sss: dateGetter("Milliseconds", 3),
      EEEE: dateStrGetter("Day"),
      EEE: dateStrGetter("Day", true),
      a: ampmGetter,
      Z: timeZoneGetter
    }
    var rdateFormat = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/
    var raspnetjson = /^\/Date\((\d+)\)\/$/
    filters.date = function (date, format) {
      var locate = filters.date.locate,
        text = "",
        parts = [],
        fn, match
      format = format || "mediumDate"
      format = locate[format] || format
      if (typeof date === "string") {
        if (/^\d+$/.test(date)) {
          date = toInt(date)
        } else if (raspnetjson.test(date)) {
          date = +RegExp.$1
        } else {
          var trimDate = date.trim()
          var dateArray = [0, 0, 0, 0, 0, 0, 0]
          var oDate = new Date(0)
          //取得年月日
          trimDate = trimDate.replace(/^(\d+)\D(\d+)\D(\d+)/, function (_, a, b, c) {
            var array = c.length === 4 ? [c, a, b] : [a, b, c]
            dateArray[0] = toInt(array[0])     //年
            dateArray[1] = toInt(array[1]) - 1 //月
            dateArray[2] = toInt(array[2])     //日
            return ""
          })
          var dateSetter = oDate.setFullYear
          var timeSetter = oDate.setHours
          trimDate = trimDate.replace(/[T\s](\d+):(\d+):?(\d+)?\.?(\d)?/, function (_, a, b, c, d) {
            dateArray[3] = toInt(a) //小时
            dateArray[4] = toInt(b) //分钟
            dateArray[5] = toInt(c) //秒
            if (d) {                //毫秒
              dateArray[6] = Math.round(parseFloat("0." + d) * 1000)
            }
            return ""
          })
          var tzHour = 0
          var tzMin = 0
          trimDate = trimDate.replace(/Z|([+-])(\d\d):?(\d\d)/, function (z, symbol, c, d) {
            dateSetter = oDate.setUTCFullYear
            timeSetter = oDate.setUTCHours
            if (symbol) {
              tzHour = toInt(symbol + c)
              tzMin = toInt(symbol + d)
            }
            return ""
          })

          dateArray[3] -= tzHour
          dateArray[4] -= tzMin
          dateSetter.apply(oDate, dateArray.slice(0, 3))
          timeSetter.apply(oDate, dateArray.slice(3))
          date = oDate
        }
      }
      if (typeof date === "number") {
        date = new Date(date)
      }
      if (avalon.type(date) !== "date") {
        return
      }
      while (format) {
        match = rdateFormat.exec(format)
        if (match) {
          parts = parts.concat(match.slice(1))
          format = parts.pop()
        } else {
          parts.push(format)
          format = null
        }
      }
      parts.forEach(function (value) {
        fn = DATE_FORMATS[value]
        text += fn ? fn(date, locate) : value.replace(/(^'|'$)/g, "").replace(/''/g, "'")
      })
      return text
    }
    var locate = {
      AMPMS: {
        0: "上午",
        1: "下午"
      },
      DAY: {
        0: "星期日",
        1: "星期一",
        2: "星期二",
        3: "星期三",
        4: "星期四",
        5: "星期五",
        6: "星期六"
      },
      MONTH: {
        0: "1月",
        1: "2月",
        2: "3月",
        3: "4月",
        4: "5月",
        5: "6月",
        6: "7月",
        7: "8月",
        8: "9月",
        9: "10月",
        10: "11月",
        11: "12月"
      },
      SHORTDAY: {
        "0": "周日",
        "1": "周一",
        "2": "周二",
        "3": "周三",
        "4": "周四",
        "5": "周五",
        "6": "周六"
      },
      fullDate: "y年M月d日EEEE",
      longDate: "y年M月d日",
      medium: "yyyy-M-d H:mm:ss",
      mediumDate: "yyyy-M-d",
      mediumTime: "H:mm:ss",
      "short": "yy-M-d ah:mm",
      shortDate: "yy-M-d",
      shortTime: "ah:mm"
    }
    locate.SHORTMONTH = locate.MONTH
    filters.date.locate = locate
  }// jshint ignore:line
  /*********************************************************************
   *                      AMD加载器                                   *
   **********************************************************************/
//https://www.devbridge.com/articles/understanding-amd-requirejs/
//http://maxogden.com/nested-dependencies.html
  var modules = avalon.modules = {
    "domReady!": {
      exports: avalon,
      state: 3
    },
    "avalon": {
      exports: avalon,
      state: 4
    }
  }
//Object(modules[id]).state拥有如下值
// undefined  没有定义
// 1(send)    已经发出请求
// 2(loading) 已经被执行但还没有执行完成，在这个阶段define方法会被执行
// 3(loaded)  执行完毕，通过onload/onreadystatechange回调判定，在这个阶段checkDeps方法会执行
// 4(execute)  其依赖也执行完毕, 值放到exports对象上，在这个阶段fireFactory方法会执行
  modules.exports = modules.avalon
  var otherRequire = window.require
  var otherDefine = window.define
  var innerRequire
  plugins.loader = function (builtin) {
    var flag = innerRequire && builtin
    window.require = flag ? innerRequire : otherRequire
    window.define = flag ? innerRequire.define : otherDefine
  }
  new function () {// jshint ignore:line
    var loadings = [] //正在加载中的模块列表
    var factorys = [] //放置define方法的factory函数
    var rjsext = /\.js$/i

    function makeRequest(name, config) {
//1. 去掉资源前缀
      var res = "js"
      name = name.replace(/^(\w+)\!/, function (a, b) {
        res = b
        return ""
      })
      if (res === "ready") {
        log("debug: ready!已经被废弃，请使用domReady!")
        res = "domReady"
      }
//2. 去掉querystring, hash
      var query = ""
      name = name.replace(rquery, function (a) {
        query = a
        return ""
      })
      //3. 去掉扩展名
      var suffix = "." + res
      var ext = /js|css/.test(suffix) ? suffix : ""
      name = name.replace(/\.[a-z0-9]+$/g, function (a) {
        if (a === suffix) {
          ext = a
          return ""
        } else {
          return a
        }
      })
      var req = avalon.mix({
        query: query,
        ext: ext,
        res: res,
        name: name,
        toUrl: toUrl
      }, config)
      req.toUrl(name)
      return req
    }

    function fireRequest(req) {
      var name = req.name
      var res = req.res
      //1. 如果该模块已经发出请求，直接返回
      var module = modules[name]
      var urlNoQuery = name && req.urlNoQuery
      if (module && module.state >= 1) {
        return name
      }
      module = modules[urlNoQuery]
      if (module && module.state >= 3) {
        innerRequire(module.deps || [], module.factory, urlNoQuery)
        return urlNoQuery
      }
      if (name && !module) {
        module = modules[urlNoQuery] = {
          id: urlNoQuery,
          state: 1 //send
        }
        var wrap = function (obj) {
          resources[res] = obj
          obj.load(name, req, function (a) {
            if (arguments.length && a !== void 0) {
              module.exports = a
            }
            module.state = 4
            checkDeps()
          })
        }

        if (!resources[res]) {
          innerRequire([res], wrap)
        } else {
          wrap(resources[res])
        }
      }
      return name ? urlNoQuery : res + "!"
    }

//核心API之一 require
    var requireQueue = []
    var isUserFirstRequire = false
    innerRequire = avalon.require = function (array, factory, parentUrl, defineConfig) {
      if (!isUserFirstRequire) {
        requireQueue.push(avalon.slice(arguments))
        if (arguments.length <= 2) {
          isUserFirstRequire = true
          var queue = requireQueue.splice(0, requireQueue.length), args
          while (args = queue.shift()) {
            innerRequire.apply(null, args)
          }
        }
        return
      }

      if (!Array.isArray(array)) {
        avalon.error("require方法的第一个参数应为数组 " + array)
      }
      var deps = [] // 放置所有依赖项的完整路径
      var uniq = Object.create(null)
      var id = parentUrl || "callback" + setTimeout("1")// jshint ignore:line
      defineConfig = defineConfig || Object.create(null)
      defineConfig.baseUrl = kernel.baseUrl
      var isBuilt = !!defineConfig.built
      if (parentUrl) {
        defineConfig.parentUrl = parentUrl.substr(0, parentUrl.lastIndexOf("/"))
        defineConfig.mapUrl = parentUrl.replace(rjsext, "")
      }
      if (isBuilt) {
        var req = makeRequest(defineConfig.defineName, defineConfig)
        id = req.urlNoQuery
      } else {
        array.forEach(function (name) {
          var req = makeRequest(name, defineConfig)
          var url = fireRequest(req) //加载资源，并返回该资源的完整地址
          if (url) {
            if (!uniq[url]) {
              deps.push(url)
              uniq[url] = "司徒正美" //去重
            }
          }
        })
      }

      var module = modules[id]
      if (!module || module.state !== 4) {
        modules[id] = {
          id: id,
          deps: isBuilt ? array.concat() : deps,
          factory: factory || noop,
          state: 3
        }
      }
      if (!module) {
        //如果此模块是定义在另一个JS文件中, 那必须等该文件加载完毕, 才能放到检测列队中
        loadings.push(id)
      }
      checkDeps()
    }

//核心API之二 require
    innerRequire.define = function (name, deps, factory) { //模块名,依赖列表,模块本身
      if (typeof name !== "string") {
        factory = deps
        deps = name
        name = "anonymous"
      }
      if (!Array.isArray(deps)) {
        factory = deps
        deps = []
      }
      var config = {
        built: !isUserFirstRequire, //用r.js打包后,所有define会放到requirejs之前
        defineName: name
      }
      var args = [deps, factory, config]
      factory.require = function (url) {
        args.splice(2, 0, url)
        if (modules[url]) {
          modules[url].state = 3 //loaded
          var isCycle = false
          try {
            isCycle = checkCycle(modules[url].deps, url)
          } catch (e) {
          }
          if (isCycle) {
            avalon.error(url + "模块与之前的模块存在循环依赖，请不要直接用script标签引入" + url + "模块")
          }
        }
        delete factory.require //释放内存
        innerRequire.apply(null, args) //0,1,2 --> 1,2,0
      }
//根据标准,所有遵循W3C标准的浏览器,script标签会按标签的出现顺序执行。
//老的浏览器中，加载也是按顺序的：一个文件下载完成后，才开始下载下一个文件。
//较新的浏览器中（IE8+ 、FireFox3.5+ 、Chrome4+ 、Safari4+），为了减小请求时间以优化体验，
//下载可以是并行的，但是执行顺序还是按照标签出现的顺序。
//但如果script标签是动态插入的, 就未必按照先请求先执行的原则了,目测只有firefox遵守
//唯一比较一致的是,IE10+及其他标准浏览器,一旦开始解析脚本, 就会一直堵在那里,直接脚本解析完毕
//亦即，先进入loading阶段的script标签(模块)必然会先进入loaded阶段
      var url = config.built ? "unknown" : getCurrentScript()
      if (url) {
        var module = modules[url]
        if (module) {
          module.state = 2
        }
        factory.require(url)
      } else {//合并前后的safari，合并后的IE6-9走此分支
        factorys.push(factory)
      }
    }
    //核心API之三 require.config(settings)
    innerRequire.config = kernel
    //核心API之四 define.amd 标识其符合AMD规范
    innerRequire.define.amd = modules

    //==========================对用户配置项进行再加工==========================
    var allpaths = kernel["orig.paths"] = Object.create(null)
    var allmaps = kernel["orig.map"] = Object.create(null)
    var allpackages = kernel["packages"] = []
    var allargs = kernel["orig.args"] = Object.create(null)
    avalon.mix(plugins, {
      paths: function (hash) {
        avalon.mix(allpaths, hash)
        kernel.paths = makeIndexArray(allpaths)
      },
      map: function (hash) {
        avalon.mix(allmaps, hash)
        var list = makeIndexArray(allmaps, 1, 1)
        avalon.each(list, function (_, item) {
          item.val = makeIndexArray(item.val)
        })
        kernel.map = list
      },
      packages: function (array) {
        array = array.concat(allpackages)
        var uniq = Object.create(null)()
        var ret = []
        for (var i = 0, pkg; pkg = array[i++];) {
          pkg = typeof pkg === "string" ? {name: pkg} : pkg
          var name = pkg.name
          if (!uniq[name]) {
            var url = joinPath(pkg.location || name, pkg.main || "main")
            url = url.replace(rjsext, "")
            ret.push(pkg)
            uniq[name] = pkg.location = url
            pkg.reg = makeMatcher(name)
          }
        }
        kernel.packages = ret.sort()
      },
      urlArgs: function (hash) {
        if (typeof hash === "string") {
          hash = {"*": hash}
        }
        avalon.mix(allargs, hash)
        kernel.urlArgs = makeIndexArray(allargs, 1)
      },
      baseUrl: function (url) {
        if (!isAbsUrl(url)) {
          var baseElement = head.getElementsByTagName("base")[0]
          if (baseElement) {
            head.removeChild(baseElement)
          }
          var node = DOC.createElement("a")
          node.href = url
          url = node.href
          if (baseElement) {
            head.insertBefore(baseElement, head.firstChild)
          }
        }
        if (url.length > 3)
          kernel.baseUrl = url
      },
      shim: function (obj) {
        for (var i in obj) {
          var value = obj[i]
          if (Array.isArray(value)) {
            value = obj[i] = {
              deps: value
            }
          }
          if (!value.exportsFn && (value.exports || value.init)) {
            value.exportsFn = makeExports(value)
          }
        }
        kernel.shim = obj
      }

    })


    //==============================内部方法=================================
    function checkCycle(deps, nick) {
      //检测是否存在循环依赖
      for (var i = 0, id; id = deps[i++];) {
        if (modules[id].state !== 4 &&
          (id === nick || checkCycle(modules[id].deps, nick))) {
          return true
        }
      }
    }

    function checkFail(node, onError) {
      var id = trimQuery(node.src) //检测是否死链
      node.onload = node.onerror = null
      if (onError) {
        setTimeout(function () {
          head.removeChild(node)
          node = null // 处理旧式IE下的循环引用问题
        })
        log("debug: 加载 " + id + " 失败" + onError + " " + (!modules[id].state))
      } else {
        return true
      }
    }

    function checkDeps() {
      //检测此JS模块的依赖是否都已安装完毕,是则安装自身
      loop: for (var i = loadings.length, id; id = loadings[--i];) {
        var obj = modules[id],
          deps = obj.deps
        if (!deps)
          continue
        for (var j = 0, key; key = deps[j]; j++) {
          if (Object(modules[key]).state !== 4) {
            continue loop
          }
        }
        //如果deps是空对象或者其依赖的模块的状态都是4
        if (obj.state !== 4) {
          loadings.splice(i, 1) //必须先移除再安装，防止在IE下DOM树建完后手动刷新页面，会多次执行它
          fireFactory(obj.id, obj.deps, obj.factory)
          checkDeps() //如果成功,则再执行一次,以防有些模块就差本模块没有安装好
        }
      }
    }

    function loadJS(url, id, callback) {
      //通过script节点加载目标模块
      var node = DOC.createElement("script")
      node.className = subscribers //让getCurrentScript只处理类名为subscribers的script节点
      node.onload = function () {
        var factory = factorys.pop()
        factory && factory.require(id)
        if (callback) {
          callback()
        }
        log("debug: 已成功加载 " + url)
        id && loadings.push(id)
        checkDeps()
      }
      node.onerror = function () {
        checkFail(node, true)
      }

      head.insertBefore(node, head.firstChild) //chrome下第二个参数不能为null
      node.src = url //插入到head的第一个节点前，防止IE6下head标签没闭合前使用appendChild抛错
      log("debug: 正准备加载 " + url) //更重要的是IE6下可以收窄getCurrentScript的寻找范围
    }

    var resources = innerRequire.plugins = {
      //三大常用资源插件 js!, css!, text!, domReady!
      domReady: {
        load: noop
      },
      js: {
        load: function (name, req, onLoad) {
          var url = req.url
          var id = req.urlNoQuery
          var shim = kernel.shim[name.replace(rjsext, "")]
          if (shim) { //shim机制
            innerRequire(shim.deps || [], function () {
              var args = avalon.slice(arguments)
              loadJS(url, id, function () {
                onLoad(shim.exportsFn ? shim.exportsFn.apply(0, args) : void 0)
              })
            })
          } else {
            loadJS(url, id)
          }
        }
      },
      css: {
        load: function (name, req, onLoad) {
          var url = req.url
          head.insertAdjacentHTML("afterBegin", '<link rel="stylesheet" href="' + url + '">')
          log("debug: 已成功加载 " + url)
          onLoad()
        }
      },
      text: {
        load: function (name, req, onLoad) {
          var url = req.url
          var xhr = getXHR()
          xhr.onload = function () {
            var status = xhr.status;
            if (status > 399 && status < 600) {
              avalon.error(url + " 对应资源不存在或没有开启 CORS")
            } else {
              log("debug: 已成功加载 " + url)
              onLoad(xhr.responseText)
            }
          }
          var time = "_=" + (new Date() - 0)
          var _url = url.indexOf("?") === -1 ? url + "?" + time : url + "&" + time
          xhr.open("GET", _url, true)
          if ("withCredentials" in xhr) {//这是处理跨域
            xhr.withCredentials = true
          }
          xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")//告诉后端这是AJAX请求
          xhr.send()
          log("debug: 正准备加载 " + url)
        }
      }
    }
    innerRequire.checkDeps = checkDeps

    var rquery = /(\?[^#]*)$/

    function trimQuery(url) {
      return (url || "").replace(rquery, "")
    }

    function isAbsUrl(path) {
      //http://stackoverflow.com/questions/10687099/how-to-test-if-a-url-string-is-absolute-or-relative
      return /^(?:[a-z]+:)?\/\//i.test(String(path))
    }


    function getCurrentScript() {
      // inspireb by https://github.com/samyk/jiagra/blob/master/jiagra.js
      var stack
      try {
        a.b.c() //强制报错,以便捕获e.stack
      } catch (e) { //safari5的sourceURL，firefox的fileName，它们的效果与e.stack不一样
        stack = e.stack
      }
      if (stack) {
        /**e.stack最后一行在所有支持的浏览器大致如下:
         *chrome23:
         * at http://113.93.50.63/data.js:4:1
         *firefox17:
         *@http://113.93.50.63/query.js:4
         *opera12:http://www.oldapps.com/opera.php?system=Windows_XP
         *@http://113.93.50.63/data.js:4
         *IE10:
         *  at Global code (http://113.93.50.63/data.js:4:1)
         *  //firefox4+ 可以用document.currentScript
         */
        stack = stack.split(/[@ ]/g).pop() //取得最后一行,最后一个空格或@之后的部分
        stack = stack[0] === "(" ? stack.slice(1, -1) : stack.replace(/\s/, "") //去掉换行符
        return trimQuery(stack.replace(/(:\d+)?:\d+$/i, "")) //去掉行号与或许存在的出错字符起始位置
      }
      var nodes = head.getElementsByTagName("script") //只在head标签中寻找
      for (var i = nodes.length, node; node = nodes[--i];) {
        if (node.className === subscribers && node.readyState === "interactive") {
          var url = node.src
          return node.className = trimQuery(url)
        }
      }
    }

    var rcallback = /^callback\d+$/

    function fireFactory(id, deps, factory) {
      var module = Object(modules[id])
      module.state = 4
      for (var i = 0, array = [], d; d = deps[i++];) {
        if (d === "exports") {
          var obj = module.exports || (module.exports = Object.create(null)())
          array.push(obj)
        } else {
          array.push(modules[d].exports)
        }
      }
      try {
        var ret = factory.apply(window, array)
      } catch (e) {
        log("执行[" + id + "]模块的factory抛错： ", e)
      }
      if (ret !== void 0) {
        module.exports = ret
      }
      if (rcallback.test(id)) {
        delete modules[id]
      }
      delete module.factory
      return ret
    }

    function toUrl(id) {
      if (id.indexOf(this.res + "!") === 0) {
        id = id.slice(this.res.length + 1) //处理define("css!style",[], function(){})的情况
      }
      var url = id
      //1. 是否命中paths配置项
      var usePath = 0
      var baseUrl = this.baseUrl
      var rootUrl = this.parentUrl || baseUrl
      eachIndexArray(id, kernel.paths, function (value, key) {
        url = url.replace(key, value)
        usePath = 1
      })
      //2. 是否命中packages配置项
      if (!usePath) {
        eachIndexArray(id, kernel.packages, function (value, key, item) {
          url = url.replace(item.name, item.location)
        })
      }
      //3. 是否命中map配置项
      if (this.mapUrl) {
        eachIndexArray(this.mapUrl, kernel.map, function (array) {
          eachIndexArray(url, array, function (mdValue, mdKey) {
            url = url.replace(mdKey, mdValue)
            rootUrl = baseUrl
          })
        })
      }
      var ext = this.ext
      if (ext && usePath && url.slice(-ext.length) === ext) {
        url = url.slice(0, -ext.length)
      }
      //4. 转换为绝对路径
      if (!isAbsUrl(url)) {
        rootUrl = this.built || /^\w/.test(url) ? baseUrl : rootUrl
        url = joinPath(rootUrl, url)
      }
      //5. 还原扩展名，query
      var urlNoQuery = url + ext
      url = urlNoQuery + this.query
      urlNoQuery = url.replace(rquery, function (a) {
        this.query = a
        return ""
      })
      //6. 处理urlArgs
      eachIndexArray(id, kernel.urlArgs, function (value) {
        url += (url.indexOf("?") === -1 ? "?" : "&") + value;
      })
      this.url = url
      return this.urlNoQuery = urlNoQuery
    }

    function makeIndexArray(hash, useStar, part) {
      //创建一个经过特殊算法排好序的数组
      var index = hash2array(hash, useStar, part)
      index.sort(descSorterByName)
      return index
    }

    function makeMatcher(prefix) {
      return new RegExp('^' + prefix + '(/|$)')
    }

    function makeExports(value) {
      return function () {
        var ret
        if (value.init) {
          ret = value.init.apply(window, arguments)
        }
        return ret || (value.exports && getGlobal(value.exports))
      }
    }


    function hash2array(hash, useStar, part) {
      var array = [];
      for (var key in hash) {
        // if (hash.hasOwnProperty(key)) {//hash是由Object.create(null)创建没有hasOwnProperty
        var item = {
          name: key,
          val: hash[key]
        }
        array.push(item)
        item.reg = key === "*" && useStar ? /^/ : makeMatcher(key)
        if (part && key !== "*") {
          item.reg = new RegExp('\/' + key.replace(/^\//, "") + '(/|$)')
        }
        //   }
      }
      return array
    }

    function eachIndexArray(moduleID, array, matcher) {
      array = array || []
      for (var i = 0, el; el = array[i++];) {
        if (el.reg.test(moduleID)) {
          matcher(el.val, el.name, el)
          return false
        }
      }
    }

    // 根据元素的name项进行数组字符数逆序的排序函数
    function descSorterByName(a, b) {
      var aaa = a.name
      var bbb = b.name
      if (bbb === "*") {
        return -1
      }
      if (aaa === "*") {
        return 1
      }
      return bbb.length - aaa.length
    }

    var rdeuce = /\/\w+\/\.\./

    function joinPath(a, b) {
      if (a.charAt(a.length - 1) !== "/") {
        a += "/"
      }
      if (b.slice(0, 2) === "./") { //相对于兄弟路径
        return a + b.slice(2)
      }
      if (b.slice(0, 2) === "..") { //相对于父路径
        a += b
        while (rdeuce.test(a)) {
          a = a.replace(rdeuce, "")
        }
        return a
      }
      if (b.slice(0, 1) === "/") {
        return a + b.slice(1)
      }
      return a + b
    }

    function getGlobal(value) {
      if (!value) {
        return value
      }
      var g = window
      value.split(".").forEach(function (part) {
        g = g[part]
      })
      return g
    }

    var mainNode = DOC.scripts[DOC.scripts.length - 1]
    var dataMain = mainNode.getAttribute("data-main")
    if (dataMain) {
      plugins.baseUrl(dataMain)
      var href = kernel.baseUrl
      kernel.baseUrl = href.slice(0, href.lastIndexOf("/") + 1)
      loadJS(href.replace(rjsext, "") + ".js")
    } else {
      var loaderUrl = trimQuery(mainNode.src)
      kernel.baseUrl = loaderUrl.slice(0, loaderUrl.lastIndexOf("/") + 1)
    }
  }// jshint ignore:line

  /*********************************************************************
   *                    DOMReady                                         *
   **********************************************************************/
  var readyList = [],
    isReady
  var fireReady = function (fn) {
    isReady = true
    var require = avalon.require
    if (require && require.checkDeps) {
      modules["domReady!"].state = 4
      require.checkDeps()
    }
    while (fn = readyList.shift()) {
      fn(avalon)
    }
  }


  if (DOC.readyState === "complete") {
    setTimeout(fireReady) //如果在domReady之外加载
  } else {
    DOC.addEventListener("DOMContentLoaded", fireReady)
  }
  window.addEventListener("load", fireReady)
  avalon.ready = function (fn) {
    if (!isReady) {
      readyList.push(fn)
    } else {
      fn(avalon)
    }
  }
  avalon.config({
    loader: true
  })
  avalon.ready(function () {
    avalon.scan(DOC.body)
  })


// Register as a named AMD module, since avalon can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase avalon is used because AMD module names are
// derived from file names, and Avalon is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of avalon, it will work.

// Note that for maximum portability, libraries that are not avalon should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. avalon is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
  if (typeof define === "function" && define.amd) {
    define("avalon", [], function () {
      return avalon
    })
  }
// Map over avalon in case of overwrite
  var _avalon = window.avalon
  avalon.noConflict = function (deep) {
    if (deep && window.avalon === avalon) {
      window.avalon = _avalon
    }
    return avalon
  }
// Expose avalon identifiers, even in AMD
// and CommonJS for browser emulators
  if (noGlobal === void 0) {
    window.avalon = avalon
  }
  return avalon

}));